Home / 1,998,351.45-2,757,558.60-1,127,138.13

Finding the Fourth Proportional to 1,998,351.45, 2,757,558.60 and 1,127,138.13

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Solution

The fourth proportional to 1,998,351.45, 2,757,558.60 and 1,127,138.13 is: 1,555,356.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,351.45 : 2,757,558.60 = 1,127,138.13 : x
  2. Step 2: Convert to fraction form
    1,998,351.45/2,757,558.60 = 1,127,138.13/x
  3. Step 3: Cross multiply
    1,998,351.45x = 2,757,558.60 × 1,127,138.13
  4. Step 4: Simplify right side
    1,998,351.45x = 3,108,149,443,769.42
  5. Step 5: Solve for x
    x = 3,108,149,443,769.42/1,998,351.45
  6. Step 6: Final answer
    x = 1,555,356.76

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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.