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Finding the Fourth Proportional to 951.98, 1,428.20 and 562.32

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Solution

The fourth proportional to 951.98, 1,428.20 and 562.32 is: 843.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.98 : 1,428.20 = 562.32 : x
  2. Step 2: Convert to fraction form
    951.98/1,428.20 = 562.32/x
  3. Step 3: Cross multiply
    951.98x = 1,428.20 × 562.32
  4. Step 4: Simplify right side
    951.98x = 803,105.42
  5. Step 5: Solve for x
    x = 803,105.42/951.98
  6. Step 6: Final answer
    x = 843.62

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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.