Home / 2,786,556.60-4,179,834.90-1,189,171.80

Finding the Fourth Proportional to 2,786,556.60, 4,179,834.90 and 1,189,171.80

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Solution

The fourth proportional to 2,786,556.60, 4,179,834.90 and 1,189,171.80 is: 1,783,757.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786,556.60 : 4,179,834.90 = 1,189,171.80 : x
  2. Step 2: Convert to fraction form
    2,786,556.60/4,179,834.90 = 1,189,171.80/x
  3. Step 3: Cross multiply
    2,786,556.60x = 4,179,834.90 × 1,189,171.80
  4. Step 4: Simplify right side
    2,786,556.60x = 4,970,541,791,735.82
  5. Step 5: Solve for x
    x = 4,970,541,791,735.82/2,786,556.60
  6. Step 6: Final answer
    x = 1,783,757.70

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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.