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Finding the Fourth Proportional to 675.28, 932.02 and 426.43

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Solution

The fourth proportional to 675.28, 932.02 and 426.43 is: 588.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    675.28 : 932.02 = 426.43 : x
  2. Step 2: Convert to fraction form
    675.28/932.02 = 426.43/x
  3. Step 3: Cross multiply
    675.28x = 932.02 × 426.43
  4. Step 4: Simplify right side
    675.28x = 397,434.50
  5. Step 5: Solve for x
    x = 397,434.50/675.28
  6. Step 6: Final answer
    x = 588.55

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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.