Home / 1,986,384.20-2,741,020.56-1,115,019.20

Finding the Fourth Proportional to 1,986,384.20, 2,741,020.56 and 1,115,019.20

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Solution

The fourth proportional to 1,986,384.20, 2,741,020.56 and 1,115,019.20 is: 1,538,620.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,384.20 : 2,741,020.56 = 1,115,019.20 : x
  2. Step 2: Convert to fraction form
    1,986,384.20/2,741,020.56 = 1,115,019.20/x
  3. Step 3: Cross multiply
    1,986,384.20x = 2,741,020.56 × 1,115,019.20
  4. Step 4: Simplify right side
    1,986,384.20x = 3,056,290,558,847.30
  5. Step 5: Solve for x
    x = 3,056,290,558,847.30/1,986,384.20
  6. Step 6: Final answer
    x = 1,538,620.05

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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.