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Finding the Fourth Proportional to 720.52, 994.50 and 426.04

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Solution

The fourth proportional to 720.52, 994.50 and 426.04 is: 588.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    720.52 : 994.50 = 426.04 : x
  2. Step 2: Convert to fraction form
    720.52/994.50 = 426.04/x
  3. Step 3: Cross multiply
    720.52x = 994.50 × 426.04
  4. Step 4: Simplify right side
    720.52x = 423,696.78
  5. Step 5: Solve for x
    x = 423,696.78/720.52
  6. Step 6: Final answer
    x = 588.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.