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Finding the Fourth Proportional to 463.62, 694.98 and 423.53

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Solution

The fourth proportional to 463.62, 694.98 and 423.53 is: 634.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    463.62 : 694.98 = 423.53 : x
  2. Step 2: Convert to fraction form
    463.62/694.98 = 423.53/x
  3. Step 3: Cross multiply
    463.62x = 694.98 × 423.53
  4. Step 4: Simplify right side
    463.62x = 294,344.01
  5. Step 5: Solve for x
    x = 294,344.01/463.62
  6. Step 6: Final answer
    x = 634.88

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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.