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Finding the Fourth Proportional to 1,049.56, 1,573.26 and 806.92

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Solution

The fourth proportional to 1,049.56, 1,573.26 and 806.92 is: 1,209.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049.56 : 1,573.26 = 806.92 : x
  2. Step 2: Convert to fraction form
    1,049.56/1,573.26 = 806.92/x
  3. Step 3: Cross multiply
    1,049.56x = 1,573.26 × 806.92
  4. Step 4: Simplify right side
    1,049.56x = 1,269,494.96
  5. Step 5: Solve for x
    x = 1,269,494.96/1,049.56
  6. Step 6: Final answer
    x = 1,209.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.