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Finding the Fourth Proportional to 723.23, 998.18 and 537.95

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Solution

The fourth proportional to 723.23, 998.18 and 537.95 is: 742.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    723.23 : 998.18 = 537.95 : x
  2. Step 2: Convert to fraction form
    723.23/998.18 = 537.95/x
  3. Step 3: Cross multiply
    723.23x = 998.18 × 537.95
  4. Step 4: Simplify right side
    723.23x = 536,970.93
  5. Step 5: Solve for x
    x = 536,970.93/723.23
  6. Step 6: Final answer
    x = 742.46

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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.