Home / 657,553.32-907,371.90-402,869.88

Finding the Fourth Proportional to 657,553.32, 907,371.90 and 402,869.88

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Solution

The fourth proportional to 657,553.32, 907,371.90 and 402,869.88 is: 555,928.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,553.32 : 907,371.90 = 402,869.88 : x
  2. Step 2: Convert to fraction form
    657,553.32/907,371.90 = 402,869.88/x
  3. Step 3: Cross multiply
    657,553.32x = 907,371.90 × 402,869.88
  4. Step 4: Simplify right side
    657,553.32x = 365,552,808,468.37
  5. Step 5: Solve for x
    x = 365,552,808,468.37/657,553.32
  6. Step 6: Final answer
    x = 555,928.77

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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.