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Finding the Fourth Proportional to 1,462.46, 2,193.21 and 488.70

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Solution

The fourth proportional to 1,462.46, 2,193.21 and 488.70 is: 732.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,462.46 : 2,193.21 = 488.70 : x
  2. Step 2: Convert to fraction form
    1,462.46/2,193.21 = 488.70/x
  3. Step 3: Cross multiply
    1,462.46x = 2,193.21 × 488.70
  4. Step 4: Simplify right side
    1,462.46x = 1,071,821.73
  5. Step 5: Solve for x
    x = 1,071,821.73/1,462.46
  6. Step 6: Final answer
    x = 732.89

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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.