Home / 979,387.20-1,469,080.80-727,444.80

Finding the Fourth Proportional to 979,387.20, 1,469,080.80 and 727,444.80

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Solution

The fourth proportional to 979,387.20, 1,469,080.80 and 727,444.80 is: 1,091,167.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,387.20 : 1,469,080.80 = 727,444.80 : x
  2. Step 2: Convert to fraction form
    979,387.20/1,469,080.80 = 727,444.80/x
  3. Step 3: Cross multiply
    979,387.20x = 1,469,080.80 × 727,444.80
  4. Step 4: Simplify right side
    979,387.20x = 1,068,675,188,739.84
  5. Step 5: Solve for x
    x = 1,068,675,188,739.84/979,387.20
  6. Step 6: Final answer
    x = 1,091,167.20

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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.