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Finding the Fourth Proportional to 606.59, 837.27 and 396.80

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Solution

The fourth proportional to 606.59, 837.27 and 396.80 is: 547.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.59 : 837.27 = 396.80 : x
  2. Step 2: Convert to fraction form
    606.59/837.27 = 396.80/x
  3. Step 3: Cross multiply
    606.59x = 837.27 × 396.80
  4. Step 4: Simplify right side
    606.59x = 332,222.57
  5. Step 5: Solve for x
    x = 332,222.57/606.59
  6. Step 6: Final answer
    x = 547.69

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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.