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Finding the Fourth Proportional to 614.92, 922.38 and 454.12

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Solution

The fourth proportional to 614.92, 922.38 and 454.12 is: 681.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.92 : 922.38 = 454.12 : x
  2. Step 2: Convert to fraction form
    614.92/922.38 = 454.12/x
  3. Step 3: Cross multiply
    614.92x = 922.38 × 454.12
  4. Step 4: Simplify right side
    614.92x = 418,871.21
  5. Step 5: Solve for x
    x = 418,871.21/614.92
  6. Step 6: Final answer
    x = 681.18

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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.