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Finding the Fourth Proportional to 837.24, 1,255.80 and 452.49

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Solution

The fourth proportional to 837.24, 1,255.80 and 452.49 is: 678.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    837.24 : 1,255.80 = 452.49 : x
  2. Step 2: Convert to fraction form
    837.24/1,255.80 = 452.49/x
  3. Step 3: Cross multiply
    837.24x = 1,255.80 × 452.49
  4. Step 4: Simplify right side
    837.24x = 568,236.94
  5. Step 5: Solve for x
    x = 568,236.94/837.24
  6. Step 6: Final answer
    x = 678.70

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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.