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Finding the Fourth Proportional to 724.66, 999.96 and 444.94

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Solution

The fourth proportional to 724.66, 999.96 and 444.94 is: 613.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    724.66 : 999.96 = 444.94 : x
  2. Step 2: Convert to fraction form
    724.66/999.96 = 444.94/x
  3. Step 3: Cross multiply
    724.66x = 999.96 × 444.94
  4. Step 4: Simplify right side
    724.66x = 444,922.20
  5. Step 5: Solve for x
    x = 444,922.20/724.66
  6. Step 6: Final answer
    x = 613.97

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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.