Home / 2,086,948.68-3,123,447.78-1,188,149.11

Finding the Fourth Proportional to 2,086,948.68, 3,123,447.78 and 1,188,149.11

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Solution

The fourth proportional to 2,086,948.68, 3,123,447.78 and 1,188,149.11 is: 1,778,252.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,086,948.68 : 3,123,447.78 = 1,188,149.11 : x
  2. Step 2: Convert to fraction form
    2,086,948.68/3,123,447.78 = 1,188,149.11/x
  3. Step 3: Cross multiply
    2,086,948.68x = 3,123,447.78 × 1,188,149.11
  4. Step 4: Simplify right side
    2,086,948.68x = 3,711,121,699,938.48
  5. Step 5: Solve for x
    x = 3,711,121,699,938.48/2,086,948.68
  6. Step 6: Final answer
    x = 1,778,252.50

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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.