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Finding the Fourth Proportional to 925.39, 1,276.67 and 532.20

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Solution

The fourth proportional to 925.39, 1,276.67 and 532.20 is: 734.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.39 : 1,276.67 = 532.20 : x
  2. Step 2: Convert to fraction form
    925.39/1,276.67 = 532.20/x
  3. Step 3: Cross multiply
    925.39x = 1,276.67 × 532.20
  4. Step 4: Simplify right side
    925.39x = 679,450.89
  5. Step 5: Solve for x
    x = 679,450.89/925.39
  6. Step 6: Final answer
    x = 734.23

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Double scale
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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.