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Finding the Fourth Proportional to 617.32, 850.20 and 574.72

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Solution

The fourth proportional to 617.32, 850.20 and 574.72 is: 791.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.32 : 850.20 = 574.72 : x
  2. Step 2: Convert to fraction form
    617.32/850.20 = 574.72/x
  3. Step 3: Cross multiply
    617.32x = 850.20 × 574.72
  4. Step 4: Simplify right side
    617.32x = 488,626.94
  5. Step 5: Solve for x
    x = 488,626.94/617.32
  6. Step 6: Final answer
    x = 791.53

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1.5x scale

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.