Home / 2,132,074.74-3,198,444.45-1,278,945.85

Finding the Fourth Proportional to 2,132,074.74, 3,198,444.45 and 1,278,945.85

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Solution

The fourth proportional to 2,132,074.74, 3,198,444.45 and 1,278,945.85 is: 1,918,618.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132,074.74 : 3,198,444.45 = 1,278,945.85 : x
  2. Step 2: Convert to fraction form
    2,132,074.74/3,198,444.45 = 1,278,945.85/x
  3. Step 3: Cross multiply
    2,132,074.74x = 3,198,444.45 × 1,278,945.85
  4. Step 4: Simplify right side
    2,132,074.74x = 4,090,637,249,388.30
  5. Step 5: Solve for x
    x = 4,090,637,249,388.30/2,132,074.74
  6. Step 6: Final answer
    x = 1,918,618.13

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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.