Home / 657,776.16-907,747.92-371,322.72

Finding the Fourth Proportional to 657,776.16, 907,747.92 and 371,322.72

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Solution

The fourth proportional to 657,776.16, 907,747.92 and 371,322.72 is: 512,434.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,776.16 : 907,747.92 = 371,322.72 : x
  2. Step 2: Convert to fraction form
    657,776.16/907,747.92 = 371,322.72/x
  3. Step 3: Cross multiply
    657,776.16x = 907,747.92 × 371,322.72
  4. Step 4: Simplify right side
    657,776.16x = 337,067,426,728.74
  5. Step 5: Solve for x
    x = 337,067,426,728.74/657,776.16
  6. Step 6: Final answer
    x = 512,434.85

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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.