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Finding the Fourth Proportional to 424,042.74, 635,966.91 and 253,312.56

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Solution

The fourth proportional to 424,042.74, 635,966.91 and 253,312.56 is: 379,910.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,042.74 : 635,966.91 = 253,312.56 : x
  2. Step 2: Convert to fraction form
    424,042.74/635,966.91 = 253,312.56/x
  3. Step 3: Cross multiply
    424,042.74x = 635,966.91 × 253,312.56
  4. Step 4: Simplify right side
    424,042.74x = 161,098,406,047.39
  5. Step 5: Solve for x
    x = 161,098,406,047.39/424,042.74
  6. Step 6: Final answer
    x = 379,910.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.