Home / 2,190,909.80-3,022,937.38-1,272,593.30

Finding the Fourth Proportional to 2,190,909.80, 3,022,937.38 and 1,272,593.30

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Solution

The fourth proportional to 2,190,909.80, 3,022,937.38 and 1,272,593.30 is: 1,755,877.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,909.80 : 3,022,937.38 = 1,272,593.30 : x
  2. Step 2: Convert to fraction form
    2,190,909.80/3,022,937.38 = 1,272,593.30/x
  3. Step 3: Cross multiply
    2,190,909.80x = 3,022,937.38 × 1,272,593.30
  4. Step 4: Simplify right side
    2,190,909.80x = 3,846,969,842,583.61
  5. Step 5: Solve for x
    x = 3,846,969,842,583.61/2,190,909.80
  6. Step 6: Final answer
    x = 1,755,877.78

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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.