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Finding the Fourth Proportional to 723.76, 997.96 and 527.36

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Solution

The fourth proportional to 723.76, 997.96 and 527.36 is: 727.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    723.76 : 997.96 = 527.36 : x
  2. Step 2: Convert to fraction form
    723.76/997.96 = 527.36/x
  3. Step 3: Cross multiply
    723.76x = 997.96 × 527.36
  4. Step 4: Simplify right side
    723.76x = 526,284.19
  5. Step 5: Solve for x
    x = 526,284.19/723.76
  6. Step 6: Final answer
    x = 727.15

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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.