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Finding the Fourth Proportional to 657,553.60, 907,471.92 and 371,098.72

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Solution

The fourth proportional to 657,553.60, 907,471.92 and 371,098.72 is: 512,143.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,553.60 : 907,471.92 = 371,098.72 : x
  2. Step 2: Convert to fraction form
    657,553.60/907,471.92 = 371,098.72/x
  3. Step 3: Cross multiply
    657,553.60x = 907,471.92 × 371,098.72
  4. Step 4: Simplify right side
    657,553.60x = 336,761,667,947.94
  5. Step 5: Solve for x
    x = 336,761,667,947.94/657,553.60
  6. Step 6: Final answer
    x = 512,143.30

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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.