Home / 1,225,589.80-1,691,288.96-681,713.88

Finding the Fourth Proportional to 1,225,589.80, 1,691,288.96 and 681,713.88

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Solution

The fourth proportional to 1,225,589.80, 1,691,288.96 and 681,713.88 is: 940,751.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,589.80 : 1,691,288.96 = 681,713.88 : x
  2. Step 2: Convert to fraction form
    1,225,589.80/1,691,288.96 = 681,713.88/x
  3. Step 3: Cross multiply
    1,225,589.80x = 1,691,288.96 × 681,713.88
  4. Step 4: Simplify right side
    1,225,589.80x = 1,152,975,159,122.76
  5. Step 5: Solve for x
    x = 1,152,975,159,122.76/1,225,589.80
  6. Step 6: Final answer
    x = 940,751.27

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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.