Finding the Fourth Proportional to 831,159.36, 1,147,569.12 and 529,761.60
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Solution
The fourth proportional to 831,159.36, 1,147,569.12 and 529,761.60 is: 731,433.80
Step by Step Solution
- Step 1: Write the proportion equation
831,159.36 : 1,147,569.12 = 529,761.60 : x - Step 2: Convert to fraction form
831,159.36/1,147,569.12 = 529,761.60/x - Step 3: Cross multiply
831,159.36x = 1,147,569.12 × 529,761.60 - Step 4: Simplify right side
831,159.36x = 607,938,053,121.79 - Step 5: Solve for x
x = 607,938,053,121.79/831,159.36 - Step 6: Final answer
x = 731,433.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.