Finding the Fourth Proportional to 416,116.38, 574,828.47 and 331,124.70
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Solution
The fourth proportional to 416,116.38, 574,828.47 and 331,124.70 is: 457,419.88
Step by Step Solution
- Step 1: Write the proportion equation
416,116.38 : 574,828.47 = 331,124.70 : x - Step 2: Convert to fraction form
416,116.38/574,828.47 = 331,124.70/x - Step 3: Cross multiply
416,116.38x = 574,828.47 × 331,124.70 - Step 4: Simplify right side
416,116.38x = 190,339,904,680.21 - Step 5: Solve for x
x = 190,339,904,680.21/416,116.38 - Step 6: Final answer
x = 457,419.88
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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.