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Finding the Fourth Proportional to 837.25, 1,254.41 and 446.43

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Solution

The fourth proportional to 837.25, 1,254.41 and 446.43 is: 668.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    837.25 : 1,254.41 = 446.43 : x
  2. Step 2: Convert to fraction form
    837.25/1,254.41 = 446.43/x
  3. Step 3: Cross multiply
    837.25x = 1,254.41 × 446.43
  4. Step 4: Simplify right side
    837.25x = 560,006.26
  5. Step 5: Solve for x
    x = 560,006.26/837.25
  6. Step 6: Final answer
    x = 668.86

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Double scale
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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.