Finding the Fourth Proportional to 718,232.68, 991,160.85 and 395,948.26
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Solution
The fourth proportional to 718,232.68, 991,160.85 and 395,948.26 is: 546,408.46
Step by Step Solution
- Step 1: Write the proportion equation
718,232.68 : 991,160.85 = 395,948.26 : x - Step 2: Convert to fraction form
718,232.68/991,160.85 = 395,948.26/x - Step 3: Cross multiply
718,232.68x = 991,160.85 × 395,948.26 - Step 4: Simplify right side
718,232.68x = 392,448,413,937.62 - Step 5: Solve for x
x = 392,448,413,937.62/718,232.68 - Step 6: Final answer
x = 546,408.46
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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.