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Finding the Fourth Proportional to 725.06, 1,000.49 and 410.27

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Solution

The fourth proportional to 725.06, 1,000.49 and 410.27 is: 566.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    725.06 : 1,000.49 = 410.27 : x
  2. Step 2: Convert to fraction form
    725.06/1,000.49 = 410.27/x
  3. Step 3: Cross multiply
    725.06x = 1,000.49 × 410.27
  4. Step 4: Simplify right side
    725.06x = 410,463.98
  5. Step 5: Solve for x
    x = 410,463.98/725.06
  6. Step 6: Final answer
    x = 566.11

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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.