Home / 2,976,278.76-4,107,405.24-1,687,144.32

Finding the Fourth Proportional to 2,976,278.76, 4,107,405.24 and 1,687,144.32

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Solution

The fourth proportional to 2,976,278.76, 4,107,405.24 and 1,687,144.32 is: 2,328,338.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976,278.76 : 4,107,405.24 = 1,687,144.32 : x
  2. Step 2: Convert to fraction form
    2,976,278.76/4,107,405.24 = 1,687,144.32/x
  3. Step 3: Cross multiply
    2,976,278.76x = 4,107,405.24 × 1,687,144.32
  4. Step 4: Simplify right side
    2,976,278.76x = 6,929,785,420,604.24
  5. Step 5: Solve for x
    x = 6,929,785,420,604.24/2,976,278.76
  6. Step 6: Final answer
    x = 2,328,338.83

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1.5x scale

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.