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Finding the Fourth Proportional to 800,818.83, 1,200,391.38 and 267,901.47

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Solution

The fourth proportional to 800,818.83, 1,200,391.38 and 267,901.47 is: 401,572.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,818.83 : 1,200,391.38 = 267,901.47 : x
  2. Step 2: Convert to fraction form
    800,818.83/1,200,391.38 = 267,901.47/x
  3. Step 3: Cross multiply
    800,818.83x = 1,200,391.38 × 267,901.47
  4. Step 4: Simplify right side
    800,818.83x = 321,586,615,277.33
  5. Step 5: Solve for x
    x = 321,586,615,277.33/800,818.83
  6. Step 6: Final answer
    x = 401,572.24

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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.