Finding the Fourth Proportional to 762,755.94, 1,052,796.69 and 521,136.18
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Solution
The fourth proportional to 762,755.94, 1,052,796.69 and 521,136.18 is: 719,300.13
Step by Step Solution
- Step 1: Write the proportion equation
762,755.94 : 1,052,796.69 = 521,136.18 : x - Step 2: Convert to fraction form
762,755.94/1,052,796.69 = 521,136.18/x - Step 3: Cross multiply
762,755.94x = 1,052,796.69 × 521,136.18 - Step 4: Simplify right side
762,755.94x = 548,650,445,343.24 - Step 5: Solve for x
x = 548,650,445,343.24/762,755.94 - Step 6: Final answer
x = 719,300.13
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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.