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Finding the Fourth Proportional to 698.62, 964.11 and 462.97

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Solution

The fourth proportional to 698.62, 964.11 and 462.97 is: 638.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    698.62 : 964.11 = 462.97 : x
  2. Step 2: Convert to fraction form
    698.62/964.11 = 462.97/x
  3. Step 3: Cross multiply
    698.62x = 964.11 × 462.97
  4. Step 4: Simplify right side
    698.62x = 446,354.01
  5. Step 5: Solve for x
    x = 446,354.01/698.62
  6. Step 6: Final answer
    x = 638.91

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.