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Finding the Fourth Proportional to 1,617.47, 2,426.20 and 463.22

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Solution

The fourth proportional to 1,617.47, 2,426.20 and 463.22 is: 694.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617.47 : 2,426.20 = 463.22 : x
  2. Step 2: Convert to fraction form
    1,617.47/2,426.20 = 463.22/x
  3. Step 3: Cross multiply
    1,617.47x = 2,426.20 × 463.22
  4. Step 4: Simplify right side
    1,617.47x = 1,123,862.78
  5. Step 5: Solve for x
    x = 1,123,862.78/1,617.47
  6. Step 6: Final answer
    x = 694.83

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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.