Home / 2,143,840.80-3,215,761.20-647,932.80

Finding the Fourth Proportional to 2,143,840.80, 3,215,761.20 and 647,932.80

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Solution

The fourth proportional to 2,143,840.80, 3,215,761.20 and 647,932.80 is: 971,899.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143,840.80 : 3,215,761.20 = 647,932.80 : x
  2. Step 2: Convert to fraction form
    2,143,840.80/3,215,761.20 = 647,932.80/x
  3. Step 3: Cross multiply
    2,143,840.80x = 3,215,761.20 × 647,932.80
  4. Step 4: Simplify right side
    2,143,840.80x = 2,083,597,158,447.36
  5. Step 5: Solve for x
    x = 2,083,597,158,447.36/2,143,840.80
  6. Step 6: Final answer
    x = 971,899.20

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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.