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Finding the Fourth Proportional to 415,703.97, 573,288.89 and 272,411.97

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Solution

The fourth proportional to 415,703.97, 573,288.89 and 272,411.97 is: 375,677.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,703.97 : 573,288.89 = 272,411.97 : x
  2. Step 2: Convert to fraction form
    415,703.97/573,288.89 = 272,411.97/x
  3. Step 3: Cross multiply
    415,703.97x = 573,288.89 × 272,411.97
  4. Step 4: Simplify right side
    415,703.97x = 156,170,755,904.01
  5. Step 5: Solve for x
    x = 156,170,755,904.01/415,703.97
  6. Step 6: Final answer
    x = 375,677.81

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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.