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Finding the Fourth Proportional to 801, 1,104.77 and 552.74

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Solution

The fourth proportional to 801, 1,104.77 and 552.74 is: 762.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    801 : 1,104.77 = 552.74 : x
  2. Step 2: Convert to fraction form
    801/1,104.77 = 552.74/x
  3. Step 3: Cross multiply
    801x = 1,104.77 × 552.74
  4. Step 4: Simplify right side
    801x = 610,646.43
  5. Step 5: Solve for x
    x = 610,646.43/801
  6. Step 6: Final answer
    x = 762.36

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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.