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Finding the Fourth Proportional to 721.91, 996.00 and 460.08

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Solution

The fourth proportional to 721.91, 996.00 and 460.08 is: 634.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    721.91 : 996.00 = 460.08 : x
  2. Step 2: Convert to fraction form
    721.91/996.00 = 460.08/x
  3. Step 3: Cross multiply
    721.91x = 996.00 × 460.08
  4. Step 4: Simplify right side
    721.91x = 458,237.95
  5. Step 5: Solve for x
    x = 458,237.95/721.91
  6. Step 6: Final answer
    x = 634.76

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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.