Home / 2,857,022.88-3,942,805.20-1,567,909.78

Finding the Fourth Proportional to 2,857,022.88, 3,942,805.20 and 1,567,909.78

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Solution

The fourth proportional to 2,857,022.88, 3,942,805.20 and 1,567,909.78 is: 2,163,777.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857,022.88 : 3,942,805.20 = 1,567,909.78 : x
  2. Step 2: Convert to fraction form
    2,857,022.88/3,942,805.20 = 1,567,909.78/x
  3. Step 3: Cross multiply
    2,857,022.88x = 3,942,805.20 × 1,567,909.78
  4. Step 4: Simplify right side
    2,857,022.88x = 6,181,962,833,714.86
  5. Step 5: Solve for x
    x = 6,181,962,833,714.86/2,857,022.88
  6. Step 6: Final answer
    x = 2,163,777.85

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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.