Home / 1,288,614.85-1,778,184.78-744,785.86

Finding the Fourth Proportional to 1,288,614.85, 1,778,184.78 and 744,785.86

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Solution

The fourth proportional to 1,288,614.85, 1,778,184.78 and 744,785.86 is: 1,027,744.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,614.85 : 1,778,184.78 = 744,785.86 : x
  2. Step 2: Convert to fraction form
    1,288,614.85/1,778,184.78 = 744,785.86/x
  3. Step 3: Cross multiply
    1,288,614.85x = 1,778,184.78 × 744,785.86
  4. Step 4: Simplify right side
    1,288,614.85x = 1,324,366,871,720.29
  5. Step 5: Solve for x
    x = 1,324,366,871,720.29/1,288,614.85
  6. Step 6: Final answer
    x = 1,027,744.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.