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Finding the Fourth Proportional to 721.98, 995.22 and 532.44

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Solution

The fourth proportional to 721.98, 995.22 and 532.44 is: 733.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    721.98 : 995.22 = 532.44 : x
  2. Step 2: Convert to fraction form
    721.98/995.22 = 532.44/x
  3. Step 3: Cross multiply
    721.98x = 995.22 × 532.44
  4. Step 4: Simplify right side
    721.98x = 529,894.94
  5. Step 5: Solve for x
    x = 529,894.94/721.98
  6. Step 6: Final answer
    x = 733.95

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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.