Home / 1,998,321.71-2,757,517.36-1,127,108.39

Finding the Fourth Proportional to 1,998,321.71, 2,757,517.36 and 1,127,108.39

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Solution

The fourth proportional to 1,998,321.71, 2,757,517.36 and 1,127,108.39 is: 1,555,315.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,321.71 : 2,757,517.36 = 1,127,108.39 : x
  2. Step 2: Convert to fraction form
    1,998,321.71/2,757,517.36 = 1,127,108.39/x
  3. Step 3: Cross multiply
    1,998,321.71x = 2,757,517.36 × 1,127,108.39
  4. Step 4: Simplify right side
    1,998,321.71x = 3,108,020,935,421.29
  5. Step 5: Solve for x
    x = 3,108,020,935,421.29/1,998,321.71
  6. Step 6: Final answer
    x = 1,555,315.61

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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.