Home / 1,221,138.09-1,830,414.34-410,751.04

Finding the Fourth Proportional to 1,221,138.09, 1,830,414.34 and 410,751.04

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Solution

The fourth proportional to 1,221,138.09, 1,830,414.34 and 410,751.04 is: 615,691.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,138.09 : 1,830,414.34 = 410,751.04 : x
  2. Step 2: Convert to fraction form
    1,221,138.09/1,830,414.34 = 410,751.04/x
  3. Step 3: Cross multiply
    1,221,138.09x = 1,830,414.34 × 410,751.04
  4. Step 4: Simplify right side
    1,221,138.09x = 751,844,593,785.91
  5. Step 5: Solve for x
    x = 751,844,593,785.91/1,221,138.09
  6. Step 6: Final answer
    x = 615,691.71

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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.