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Finding the Fourth Proportional to 494.52, 740.66 and 425.49

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Solution

The fourth proportional to 494.52, 740.66 and 425.49 is: 637.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    494.52 : 740.66 = 425.49 : x
  2. Step 2: Convert to fraction form
    494.52/740.66 = 425.49/x
  3. Step 3: Cross multiply
    494.52x = 740.66 × 425.49
  4. Step 4: Simplify right side
    494.52x = 315,141.30
  5. Step 5: Solve for x
    x = 315,141.30/494.52
  6. Step 6: Final answer
    x = 637.27

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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.