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Finding the Fourth Proportional to 499.84, 754.20 and 479.88

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Solution

The fourth proportional to 499.84, 754.20 and 479.88 is: 724.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    499.84 : 754.20 = 479.88 : x
  2. Step 2: Convert to fraction form
    499.84/754.20 = 479.88/x
  3. Step 3: Cross multiply
    499.84x = 754.20 × 479.88
  4. Step 4: Simplify right side
    499.84x = 361,925.50
  5. Step 5: Solve for x
    x = 361,925.50/499.84
  6. Step 6: Final answer
    x = 724.08

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.