Home / 2,278,276.70-3,143,987.30-1,245,787.78

Finding the Fourth Proportional to 2,278,276.70, 3,143,987.30 and 1,245,787.78

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Solution

The fourth proportional to 2,278,276.70, 3,143,987.30 and 1,245,787.78 is: 1,719,168.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278,276.70 : 3,143,987.30 = 1,245,787.78 : x
  2. Step 2: Convert to fraction form
    2,278,276.70/3,143,987.30 = 1,245,787.78/x
  3. Step 3: Cross multiply
    2,278,276.70x = 3,143,987.30 × 1,245,787.78
  4. Step 4: Simplify right side
    2,278,276.70x = 3,916,740,958,815.19
  5. Step 5: Solve for x
    x = 3,916,740,958,815.19/2,278,276.70
  6. Step 6: Final answer
    x = 1,719,168.25

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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.