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Finding the Fourth Proportional to 800,344.17, 1,200,390.98 and 267,860.97

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Solution

The fourth proportional to 800,344.17, 1,200,390.98 and 267,860.97 is: 401,749.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,344.17 : 1,200,390.98 = 267,860.97 : x
  2. Step 2: Convert to fraction form
    800,344.17/1,200,390.98 = 267,860.97/x
  3. Step 3: Cross multiply
    800,344.17x = 1,200,390.98 × 267,860.97
  4. Step 4: Simplify right side
    800,344.17x = 321,537,890,942.75
  5. Step 5: Solve for x
    x = 321,537,890,942.75/800,344.17
  6. Step 6: Final answer
    x = 401,749.53

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1.5x scale

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.