Finding the Fourth Proportional to 542,815.34, 749,119.08 and 313,414.58
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Solution
The fourth proportional to 542,815.34, 749,119.08 and 313,414.58 is: 432,531.70
Step by Step Solution
- Step 1: Write the proportion equation
542,815.34 : 749,119.08 = 313,414.58 : x - Step 2: Convert to fraction form
542,815.34/749,119.08 = 313,414.58/x - Step 3: Cross multiply
542,815.34x = 749,119.08 × 313,414.58 - Step 4: Simplify right side
542,815.34x = 234,784,841,828.19 - Step 5: Solve for x
x = 234,784,841,828.19/542,815.34 - Step 6: Final answer
x = 432,531.70
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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.