Home / 1,251,771.20-1,727,444.72-678,811.22

Finding the Fourth Proportional to 1,251,771.20, 1,727,444.72 and 678,811.22

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Solution

The fourth proportional to 1,251,771.20, 1,727,444.72 and 678,811.22 is: 936,759.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,771.20 : 1,727,444.72 = 678,811.22 : x
  2. Step 2: Convert to fraction form
    1,251,771.20/1,727,444.72 = 678,811.22/x
  3. Step 3: Cross multiply
    1,251,771.20x = 1,727,444.72 × 678,811.22
  4. Step 4: Simplify right side
    1,251,771.20x = 1,172,608,854,471.70
  5. Step 5: Solve for x
    x = 1,172,608,854,471.70/1,251,771.20
  6. Step 6: Final answer
    x = 936,759.73

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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.