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Finding the Fourth Proportional to 617.41, 928.14 and 572.30

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Solution

The fourth proportional to 617.41, 928.14 and 572.30 is: 860.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.41 : 928.14 = 572.30 : x
  2. Step 2: Convert to fraction form
    617.41/928.14 = 572.30/x
  3. Step 3: Cross multiply
    617.41x = 928.14 × 572.30
  4. Step 4: Simplify right side
    617.41x = 531,174.52
  5. Step 5: Solve for x
    x = 531,174.52/617.41
  6. Step 6: Final answer
    x = 860.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.