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Finding the Fourth Proportional to 837.47, 1,252.94 and 650.90

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Solution

The fourth proportional to 837.47, 1,252.94 and 650.90 is: 973.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    837.47 : 1,252.94 = 650.90 : x
  2. Step 2: Convert to fraction form
    837.47/1,252.94 = 650.90/x
  3. Step 3: Cross multiply
    837.47x = 1,252.94 × 650.90
  4. Step 4: Simplify right side
    837.47x = 815,538.52
  5. Step 5: Solve for x
    x = 815,538.52/837.47
  6. Step 6: Final answer
    x = 973.81

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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.