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Finding the Fourth Proportional to 451.44, 625.88 and 426.83

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Solution

The fourth proportional to 451.44, 625.88 and 426.83 is: 591.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.44 : 625.88 = 426.83 : x
  2. Step 2: Convert to fraction form
    451.44/625.88 = 426.83/x
  3. Step 3: Cross multiply
    451.44x = 625.88 × 426.83
  4. Step 4: Simplify right side
    451.44x = 267,142.30
  5. Step 5: Solve for x
    x = 267,142.30/451.44
  6. Step 6: Final answer
    x = 591.76

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.