Home / 1,247,906.20-1,871,859.30-1,198,917.40

Finding the Fourth Proportional to 1,247,906.20, 1,871,859.30 and 1,198,917.40

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Solution

The fourth proportional to 1,247,906.20, 1,871,859.30 and 1,198,917.40 is: 1,798,376.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,906.20 : 1,871,859.30 = 1,198,917.40 : x
  2. Step 2: Convert to fraction form
    1,247,906.20/1,871,859.30 = 1,198,917.40/x
  3. Step 3: Cross multiply
    1,247,906.20x = 1,871,859.30 × 1,198,917.40
  4. Step 4: Simplify right side
    1,247,906.20x = 2,244,204,685,121.82
  5. Step 5: Solve for x
    x = 2,244,204,685,121.82/1,247,906.20
  6. Step 6: Final answer
    x = 1,798,376.10

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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.