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Finding the Fourth Proportional to 1,024.29, 1,532.66 and 613.71

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Solution

The fourth proportional to 1,024.29, 1,532.66 and 613.71 is: 918.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,024.29 : 1,532.66 = 613.71 : x
  2. Step 2: Convert to fraction form
    1,024.29/1,532.66 = 613.71/x
  3. Step 3: Cross multiply
    1,024.29x = 1,532.66 × 613.71
  4. Step 4: Simplify right side
    1,024.29x = 940,605.70
  5. Step 5: Solve for x
    x = 940,605.70/1,024.29
  6. Step 6: Final answer
    x = 918.30

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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.