Home / 2,102,695.20-3,149,377.20-839,872.80

Finding the Fourth Proportional to 2,102,695.20, 3,149,377.20 and 839,872.80

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Solution

The fourth proportional to 2,102,695.20, 3,149,377.20 and 839,872.80 is: 1,257,945.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,102,695.20 : 3,149,377.20 = 839,872.80 : x
  2. Step 2: Convert to fraction form
    2,102,695.20/3,149,377.20 = 839,872.80/x
  3. Step 3: Cross multiply
    2,102,695.20x = 3,149,377.20 × 839,872.80
  4. Step 4: Simplify right side
    2,102,695.20x = 2,645,076,247,220.16
  5. Step 5: Solve for x
    x = 2,645,076,247,220.16/2,102,695.20
  6. Step 6: Final answer
    x = 1,257,945.63

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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.