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Finding the Fourth Proportional to 606.62, 836.89 and 396.73

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Solution

The fourth proportional to 606.62, 836.89 and 396.73 is: 547.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.62 : 836.89 = 396.73 : x
  2. Step 2: Convert to fraction form
    606.62/836.89 = 396.73/x
  3. Step 3: Cross multiply
    606.62x = 836.89 × 396.73
  4. Step 4: Simplify right side
    606.62x = 332,013.20
  5. Step 5: Solve for x
    x = 332,013.20/606.62
  6. Step 6: Final answer
    x = 547.32

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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.