Home / 1,998,922.60-2,758,502.82-1,081,150.78

Finding the Fourth Proportional to 1,998,922.60, 2,758,502.82 and 1,081,150.78

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Solution

The fourth proportional to 1,998,922.60, 2,758,502.82 and 1,081,150.78 is: 1,491,982.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,922.60 : 2,758,502.82 = 1,081,150.78 : x
  2. Step 2: Convert to fraction form
    1,998,922.60/2,758,502.82 = 1,081,150.78/x
  3. Step 3: Cross multiply
    1,998,922.60x = 2,758,502.82 × 1,081,150.78
  4. Step 4: Simplify right side
    1,998,922.60x = 2,982,357,475,475.20
  5. Step 5: Solve for x
    x = 2,982,357,475,475.20/1,998,922.60
  6. Step 6: Final answer
    x = 1,491,982.47

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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.