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Finding the Fourth Proportional to 724.26, 1,085.22 and 463.44

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Solution

The fourth proportional to 724.26, 1,085.22 and 463.44 is: 694.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    724.26 : 1,085.22 = 463.44 : x
  2. Step 2: Convert to fraction form
    724.26/1,085.22 = 463.44/x
  3. Step 3: Cross multiply
    724.26x = 1,085.22 × 463.44
  4. Step 4: Simplify right side
    724.26x = 502,934.36
  5. Step 5: Solve for x
    x = 502,934.36/724.26
  6. Step 6: Final answer
    x = 694.41

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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.