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Finding the Fourth Proportional to 1,462.60, 2,194.12 and 488.47

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Solution

The fourth proportional to 1,462.60, 2,194.12 and 488.47 is: 732.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,462.60 : 2,194.12 = 488.47 : x
  2. Step 2: Convert to fraction form
    1,462.60/2,194.12 = 488.47/x
  3. Step 3: Cross multiply
    1,462.60x = 2,194.12 × 488.47
  4. Step 4: Simplify right side
    1,462.60x = 1,071,761.80
  5. Step 5: Solve for x
    x = 1,071,761.80/1,462.60
  6. Step 6: Final answer
    x = 732.78

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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.