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Finding the Fourth Proportional to 724.98, 1,000.14 and 547.62

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Solution

The fourth proportional to 724.98, 1,000.14 and 547.62 is: 755.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    724.98 : 1,000.14 = 547.62 : x
  2. Step 2: Convert to fraction form
    724.98/1,000.14 = 547.62/x
  3. Step 3: Cross multiply
    724.98x = 1,000.14 × 547.62
  4. Step 4: Simplify right side
    724.98x = 547,696.67
  5. Step 5: Solve for x
    x = 547,696.67/724.98
  6. Step 6: Final answer
    x = 755.46

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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.