Home / 1,278,138.32-1,771,287.26-1,260,098

Finding the Fourth Proportional to 1,278,138.32, 1,771,287.26 and 1,260,098

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Solution

The fourth proportional to 1,278,138.32, 1,771,287.26 and 1,260,098 is: 1,746,286.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,138.32 : 1,771,287.26 = 1,260,098 : x
  2. Step 2: Convert to fraction form
    1,278,138.32/1,771,287.26 = 1,260,098/x
  3. Step 3: Cross multiply
    1,278,138.32x = 1,771,287.26 × 1,260,098
  4. Step 4: Simplify right side
    1,278,138.32x = 2,231,995,533,751.48
  5. Step 5: Solve for x
    x = 2,231,995,533,751.48/1,278,138.32
  6. Step 6: Final answer
    x = 1,746,286.38

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.