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Finding the Fourth Proportional to 657,951.52, 907,972.84 and 356,145.52

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Solution

The fourth proportional to 657,951.52, 907,972.84 and 356,145.52 is: 491,480.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,951.52 : 907,972.84 = 356,145.52 : x
  2. Step 2: Convert to fraction form
    657,951.52/907,972.84 = 356,145.52/x
  3. Step 3: Cross multiply
    657,951.52x = 907,972.84 × 356,145.52
  4. Step 4: Simplify right side
    657,951.52x = 323,370,459,247.68
  5. Step 5: Solve for x
    x = 323,370,459,247.68/657,951.52
  6. Step 6: Final answer
    x = 491,480.68

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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.