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Finding the Fourth Proportional to 723.72, 998.32 and 598.66

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Solution

The fourth proportional to 723.72, 998.32 and 598.66 is: 825.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    723.72 : 998.32 = 598.66 : x
  2. Step 2: Convert to fraction form
    723.72/998.32 = 598.66/x
  3. Step 3: Cross multiply
    723.72x = 998.32 × 598.66
  4. Step 4: Simplify right side
    723.72x = 597,654.25
  5. Step 5: Solve for x
    x = 597,654.25/723.72
  6. Step 6: Final answer
    x = 825.81

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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.