Home / 1,981,045.76-2,734,012.32-1,121,757.44

Finding the Fourth Proportional to 1,981,045.76, 2,734,012.32 and 1,121,757.44

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Solution

The fourth proportional to 1,981,045.76, 2,734,012.32 and 1,121,757.44 is: 1,548,121.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,045.76 : 2,734,012.32 = 1,121,757.44 : x
  2. Step 2: Convert to fraction form
    1,981,045.76/2,734,012.32 = 1,121,757.44/x
  3. Step 3: Cross multiply
    1,981,045.76x = 2,734,012.32 × 1,121,757.44
  4. Step 4: Simplify right side
    1,981,045.76x = 3,066,898,661,011.66
  5. Step 5: Solve for x
    x = 3,066,898,661,011.66/1,981,045.76
  6. Step 6: Final answer
    x = 1,548,121.06

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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.