Home / 1,981,754.78-2,734,730.01-1,122,321.20

Finding the Fourth Proportional to 1,981,754.78, 2,734,730.01 and 1,122,321.20

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Solution

The fourth proportional to 1,981,754.78, 2,734,730.01 and 1,122,321.20 is: 1,548,751.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,754.78 : 2,734,730.01 = 1,122,321.20 : x
  2. Step 2: Convert to fraction form
    1,981,754.78/2,734,730.01 = 1,122,321.20/x
  3. Step 3: Cross multiply
    1,981,754.78x = 2,734,730.01 × 1,122,321.20
  4. Step 4: Simplify right side
    1,981,754.78x = 3,069,245,452,825.56
  5. Step 5: Solve for x
    x = 3,069,245,452,825.56/1,981,754.78
  6. Step 6: Final answer
    x = 1,548,751.39

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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.