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Finding the Fourth Proportional to 447,042.73, 616,874.79 and 253,412.25

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Solution

The fourth proportional to 447,042.73, 616,874.79 and 253,412.25 is: 349,683.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,042.73 : 616,874.79 = 253,412.25 : x
  2. Step 2: Convert to fraction form
    447,042.73/616,874.79 = 253,412.25/x
  3. Step 3: Cross multiply
    447,042.73x = 616,874.79 × 253,412.25
  4. Step 4: Simplify right side
    447,042.73x = 156,323,625,713.75
  5. Step 5: Solve for x
    x = 156,323,625,713.75/447,042.73
  6. Step 6: Final answer
    x = 349,683.85

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1.5x scale

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.