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Finding the Fourth Proportional to 804.33, 1,200.42 and 726.57

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Solution

The fourth proportional to 804.33, 1,200.42 and 726.57 is: 1,084.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    804.33 : 1,200.42 = 726.57 : x
  2. Step 2: Convert to fraction form
    804.33/1,200.42 = 726.57/x
  3. Step 3: Cross multiply
    804.33x = 1,200.42 × 726.57
  4. Step 4: Simplify right side
    804.33x = 872,189.16
  5. Step 5: Solve for x
    x = 872,189.16/804.33
  6. Step 6: Final answer
    x = 1,084.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.