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Finding the Fourth Proportional to 726.22, 1,001.78 and 601.16

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Solution

The fourth proportional to 726.22, 1,001.78 and 601.16 is: 829.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    726.22 : 1,001.78 = 601.16 : x
  2. Step 2: Convert to fraction form
    726.22/1,001.78 = 601.16/x
  3. Step 3: Cross multiply
    726.22x = 1,001.78 × 601.16
  4. Step 4: Simplify right side
    726.22x = 602,230.06
  5. Step 5: Solve for x
    x = 602,230.06/726.22
  6. Step 6: Final answer
    x = 829.27

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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.