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Finding the Fourth Proportional to 800.14, 1,104.69 and 548.49

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Solution

The fourth proportional to 800.14, 1,104.69 and 548.49 is: 757.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    800.14 : 1,104.69 = 548.49 : x
  2. Step 2: Convert to fraction form
    800.14/1,104.69 = 548.49/x
  3. Step 3: Cross multiply
    800.14x = 1,104.69 × 548.49
  4. Step 4: Simplify right side
    800.14x = 605,905.89
  5. Step 5: Solve for x
    x = 605,905.89/800.14
  6. Step 6: Final answer
    x = 757.25

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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.