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Finding the Fourth Proportional to 499.88, 746.04 and 486.92

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Solution

The fourth proportional to 499.88, 746.04 and 486.92 is: 726.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    499.88 : 746.04 = 486.92 : x
  2. Step 2: Convert to fraction form
    499.88/746.04 = 486.92/x
  3. Step 3: Cross multiply
    499.88x = 746.04 × 486.92
  4. Step 4: Simplify right side
    499.88x = 363,261.80
  5. Step 5: Solve for x
    x = 363,261.80/499.88
  6. Step 6: Final answer
    x = 726.70

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.