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Finding the Fourth Proportional to 951.12, 1,425.96 and 604.80

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Solution

The fourth proportional to 951.12, 1,425.96 and 604.80 is: 906.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.12 : 1,425.96 = 604.80 : x
  2. Step 2: Convert to fraction form
    951.12/1,425.96 = 604.80/x
  3. Step 3: Cross multiply
    951.12x = 1,425.96 × 604.80
  4. Step 4: Simplify right side
    951.12x = 862,420.61
  5. Step 5: Solve for x
    x = 862,420.61/951.12
  6. Step 6: Final answer
    x = 906.74

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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.