Home / 1,752,617.20-2,629,962.60-1,278,108.40

Finding the Fourth Proportional to 1,752,617.20, 2,629,962.60 and 1,278,108.40

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Solution

The fourth proportional to 1,752,617.20, 2,629,962.60 and 1,278,108.40 is: 1,917,918.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,752,617.20 : 2,629,962.60 = 1,278,108.40 : x
  2. Step 2: Convert to fraction form
    1,752,617.20/2,629,962.60 = 1,278,108.40/x
  3. Step 3: Cross multiply
    1,752,617.20x = 2,629,962.60 × 1,278,108.40
  4. Step 4: Simplify right side
    1,752,617.20x = 3,361,377,290,745.84
  5. Step 5: Solve for x
    x = 3,361,377,290,745.84/1,752,617.20
  6. Step 6: Final answer
    x = 1,917,918.69

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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.