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Finding the Fourth Proportional to 724.54, 999.03 and 672.70

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Solution

The fourth proportional to 724.54, 999.03 and 672.70 is: 927.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    724.54 : 999.03 = 672.70 : x
  2. Step 2: Convert to fraction form
    724.54/999.03 = 672.70/x
  3. Step 3: Cross multiply
    724.54x = 999.03 × 672.70
  4. Step 4: Simplify right side
    724.54x = 672,047.48
  5. Step 5: Solve for x
    x = 672,047.48/724.54
  6. Step 6: Final answer
    x = 927.55

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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.