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Finding the Fourth Proportional to 3,079,809.70, 4,619,714.55 and 835,947.70

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Solution

The fourth proportional to 3,079,809.70, 4,619,714.55 and 835,947.70 is: 1,253,921.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079,809.70 : 4,619,714.55 = 835,947.70 : x
  2. Step 2: Convert to fraction form
    3,079,809.70/4,619,714.55 = 835,947.70/x
  3. Step 3: Cross multiply
    3,079,809.70x = 4,619,714.55 × 835,947.70
  4. Step 4: Simplify right side
    3,079,809.70x = 3,861,839,752,729.03
  5. Step 5: Solve for x
    x = 3,861,839,752,729.03/3,079,809.70
  6. Step 6: Final answer
    x = 1,253,921.55

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.