Home / 2,087,589.80-2,880,825.18-1,228,205.48

Finding the Fourth Proportional to 2,087,589.80, 2,880,825.18 and 1,228,205.48

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Solution

The fourth proportional to 2,087,589.80, 2,880,825.18 and 1,228,205.48 is: 1,694,894.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087,589.80 : 2,880,825.18 = 1,228,205.48 : x
  2. Step 2: Convert to fraction form
    2,087,589.80/2,880,825.18 = 1,228,205.48/x
  3. Step 3: Cross multiply
    2,087,589.80x = 2,880,825.18 × 1,228,205.48
  4. Step 4: Simplify right side
    2,087,589.80x = 3,538,245,272,997.99
  5. Step 5: Solve for x
    x = 3,538,245,272,997.99/2,087,589.80
  6. Step 6: Final answer
    x = 1,694,894.88

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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.