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Finding the Fourth Proportional to 898,309.20, 1,347,658.20 and 267,286.80

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Solution

The fourth proportional to 898,309.20, 1,347,658.20 and 267,286.80 is: 400,988.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,309.20 : 1,347,658.20 = 267,286.80 : x
  2. Step 2: Convert to fraction form
    898,309.20/1,347,658.20 = 267,286.80/x
  3. Step 3: Cross multiply
    898,309.20x = 1,347,658.20 × 267,286.80
  4. Step 4: Simplify right side
    898,309.20x = 360,211,247,771.76
  5. Step 5: Solve for x
    x = 360,211,247,771.76/898,309.20
  6. Step 6: Final answer
    x = 400,988.04

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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.