Home / 981,231.40-1,471,847.10-943,906.60

Finding the Fourth Proportional to 981,231.40, 1,471,847.10 and 943,906.60

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Solution

The fourth proportional to 981,231.40, 1,471,847.10 and 943,906.60 is: 1,415,859.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,231.40 : 1,471,847.10 = 943,906.60 : x
  2. Step 2: Convert to fraction form
    981,231.40/1,471,847.10 = 943,906.60/x
  3. Step 3: Cross multiply
    981,231.40x = 1,471,847.10 × 943,906.60
  4. Step 4: Simplify right side
    981,231.40x = 1,389,286,191,880.86
  5. Step 5: Solve for x
    x = 1,389,286,191,880.86/981,231.40
  6. Step 6: Final answer
    x = 1,415,859.90

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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.