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Finding the Fourth Proportional to 499.42, 747.97 and 482.12

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Solution

The fourth proportional to 499.42, 747.97 and 482.12 is: 722.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    499.42 : 747.97 = 482.12 : x
  2. Step 2: Convert to fraction form
    499.42/747.97 = 482.12/x
  3. Step 3: Cross multiply
    499.42x = 747.97 × 482.12
  4. Step 4: Simplify right side
    499.42x = 360,611.87
  5. Step 5: Solve for x
    x = 360,611.87/499.42
  6. Step 6: Final answer
    x = 722.06

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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.