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Finding the Fourth Proportional to 1,524.57, 2,286.92 and 484.55

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Solution

The fourth proportional to 1,524.57, 2,286.92 and 484.55 is: 726.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,524.57 : 2,286.92 = 484.55 : x
  2. Step 2: Convert to fraction form
    1,524.57/2,286.92 = 484.55/x
  3. Step 3: Cross multiply
    1,524.57x = 2,286.92 × 484.55
  4. Step 4: Simplify right side
    1,524.57x = 1,108,127.09
  5. Step 5: Solve for x
    x = 1,108,127.09/1,524.57
  6. Step 6: Final answer
    x = 726.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.