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Finding the Fourth Proportional to 573.17, 863.98 and 539.72

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Solution

The fourth proportional to 573.17, 863.98 and 539.72 is: 813.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.17 : 863.98 = 539.72 : x
  2. Step 2: Convert to fraction form
    573.17/863.98 = 539.72/x
  3. Step 3: Cross multiply
    573.17x = 863.98 × 539.72
  4. Step 4: Simplify right side
    573.17x = 466,304.86
  5. Step 5: Solve for x
    x = 466,304.86/573.17
  6. Step 6: Final answer
    x = 813.56

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.