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Finding the Fourth Proportional to 723.06, 997.16 and 542.89

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Solution

The fourth proportional to 723.06, 997.16 and 542.89 is: 748.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    723.06 : 997.16 = 542.89 : x
  2. Step 2: Convert to fraction form
    723.06/997.16 = 542.89/x
  3. Step 3: Cross multiply
    723.06x = 997.16 × 542.89
  4. Step 4: Simplify right side
    723.06x = 541,342.99
  5. Step 5: Solve for x
    x = 541,342.99/723.06
  6. Step 6: Final answer
    x = 748.68

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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.