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Finding the Fourth Proportional to 800,900.48, 1,200,086.16 and 650,408.48

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Solution

The fourth proportional to 800,900.48, 1,200,086.16 and 650,408.48 is: 974,585.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,900.48 : 1,200,086.16 = 650,408.48 : x
  2. Step 2: Convert to fraction form
    800,900.48/1,200,086.16 = 650,408.48/x
  3. Step 3: Cross multiply
    800,900.48x = 1,200,086.16 × 650,408.48
  4. Step 4: Simplify right side
    800,900.48x = 780,546,215,194.64
  5. Step 5: Solve for x
    x = 780,546,215,194.64/800,900.48
  6. Step 6: Final answer
    x = 974,585.78

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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.