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Finding the Fourth Proportional to 617.70, 851.87 and 460.73

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Solution

The fourth proportional to 617.70, 851.87 and 460.73 is: 635.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.70 : 851.87 = 460.73 : x
  2. Step 2: Convert to fraction form
    617.70/851.87 = 460.73/x
  3. Step 3: Cross multiply
    617.70x = 851.87 × 460.73
  4. Step 4: Simplify right side
    617.70x = 392,475.50
  5. Step 5: Solve for x
    x = 392,475.50/617.70
  6. Step 6: Final answer
    x = 635.38

Related Problems

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Double scale
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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.