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Finding the Fourth Proportional to 614.20, 925.90 and 573.46

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Solution

The fourth proportional to 614.20, 925.90 and 573.46 is: 864.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.20 : 925.90 = 573.46 : x
  2. Step 2: Convert to fraction form
    614.20/925.90 = 573.46/x
  3. Step 3: Cross multiply
    614.20x = 925.90 × 573.46
  4. Step 4: Simplify right side
    614.20x = 530,966.61
  5. Step 5: Solve for x
    x = 530,966.61/614.20
  6. Step 6: Final answer
    x = 864.48

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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.