In the story, Lord of The Flies what is Ralph's relationship with Jack?( i.e. how does he influence his decisions and feelings)

From the beginning of the story, Jack and Ralph are rivals
for the leadership of the boys.  Ralph feels that he can be the leader, but he always
lacks the confidence and natural charisma that Jack has, so he tends to second guess
himself and also takes more time to deliberate.  Once he has established himself as a
leader, he is immediately concerned about the fact that Jack appears to want to go in a
different direction and some of the boys would rather do that as
well.

Jack seems to become something of a foil to Ralph in
that his desire to hunt and think only of the here and now pushes Ralph to agree more
with Piggy and try to think long term and to also lean heavily on the side of law and
order and rules.