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Finding the Fourth Proportional to 949.22, 1,425.14 and 676.86

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Solution

The fourth proportional to 949.22, 1,425.14 and 676.86 is: 1,016.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    949.22 : 1,425.14 = 676.86 : x
  2. Step 2: Convert to fraction form
    949.22/1,425.14 = 676.86/x
  3. Step 3: Cross multiply
    949.22x = 1,425.14 × 676.86
  4. Step 4: Simplify right side
    949.22x = 964,617.88
  5. Step 5: Solve for x
    x = 964,617.88/949.22
  6. Step 6: Final answer
    x = 1,016.22

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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.