Home / 1,981,742.70-2,734,713.54-1,122,309.21

Finding the Fourth Proportional to 1,981,742.70, 2,734,713.54 and 1,122,309.21

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Solution

The fourth proportional to 1,981,742.70, 2,734,713.54 and 1,122,309.21 is: 1,548,734.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,742.70 : 2,734,713.54 = 1,122,309.21 : x
  2. Step 2: Convert to fraction form
    1,981,742.70/2,734,713.54 = 1,122,309.21/x
  3. Step 3: Cross multiply
    1,981,742.70x = 2,734,713.54 × 1,122,309.21
  4. Step 4: Simplify right side
    1,981,742.70x = 3,069,194,192,653.70
  5. Step 5: Solve for x
    x = 3,069,194,192,653.70/1,981,742.70
  6. Step 6: Final answer
    x = 1,548,734.96

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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.