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Finding the Fourth Proportional to 579.53, 873.27 and 479.06

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Solution

The fourth proportional to 579.53, 873.27 and 479.06 is: 721.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.53 : 873.27 = 479.06 : x
  2. Step 2: Convert to fraction form
    579.53/873.27 = 479.06/x
  3. Step 3: Cross multiply
    579.53x = 873.27 × 479.06
  4. Step 4: Simplify right side
    579.53x = 418,348.73
  5. Step 5: Solve for x
    x = 418,348.73/579.53
  6. Step 6: Final answer
    x = 721.88

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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.