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Finding the Fourth Proportional to 726.30, 1,001.97 and 676.22

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Solution

The fourth proportional to 726.30, 1,001.97 and 676.22 is: 932.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    726.30 : 1,001.97 = 676.22 : x
  2. Step 2: Convert to fraction form
    726.30/1,001.97 = 676.22/x
  3. Step 3: Cross multiply
    726.30x = 1,001.97 × 676.22
  4. Step 4: Simplify right side
    726.30x = 677,547.14
  5. Step 5: Solve for x
    x = 677,547.14/726.30
  6. Step 6: Final answer
    x = 932.88

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1.5x scale

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.