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Finding the Fourth Proportional to 726.82, 1,004.04 and 579.26

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Solution

The fourth proportional to 726.82, 1,004.04 and 579.26 is: 800.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    726.82 : 1,004.04 = 579.26 : x
  2. Step 2: Convert to fraction form
    726.82/1,004.04 = 579.26/x
  3. Step 3: Cross multiply
    726.82x = 1,004.04 × 579.26
  4. Step 4: Simplify right side
    726.82x = 581,602.72
  5. Step 5: Solve for x
    x = 581,602.72/726.82
  6. Step 6: Final answer
    x = 800.20

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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.