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Finding the Fourth Proportional to 724.41, 999.77 and 444.69

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Solution

The fourth proportional to 724.41, 999.77 and 444.69 is: 613.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    724.41 : 999.77 = 444.69 : x
  2. Step 2: Convert to fraction form
    724.41/999.77 = 444.69/x
  3. Step 3: Cross multiply
    724.41x = 999.77 × 444.69
  4. Step 4: Simplify right side
    724.41x = 444,585.50
  5. Step 5: Solve for x
    x = 444,585.50/724.41
  6. Step 6: Final answer
    x = 613.72

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Double scale
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1.5x scale

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.