Home / 869,680.20-1,304,520.30-806,694.60

Finding the Fourth Proportional to 869,680.20, 1,304,520.30 and 806,694.60

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Solution

The fourth proportional to 869,680.20, 1,304,520.30 and 806,694.60 is: 1,210,041.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,680.20 : 1,304,520.30 = 806,694.60 : x
  2. Step 2: Convert to fraction form
    869,680.20/1,304,520.30 = 806,694.60/x
  3. Step 3: Cross multiply
    869,680.20x = 1,304,520.30 × 806,694.60
  4. Step 4: Simplify right side
    869,680.20x = 1,052,349,481,600.38
  5. Step 5: Solve for x
    x = 1,052,349,481,600.38/869,680.20
  6. Step 6: Final answer
    x = 1,210,041.90

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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.