Home / 825,815.80-1,238,723.70-699,844.60

Finding the Fourth Proportional to 825,815.80, 1,238,723.70 and 699,844.60

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Solution

The fourth proportional to 825,815.80, 1,238,723.70 and 699,844.60 is: 1,049,766.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,815.80 : 1,238,723.70 = 699,844.60 : x
  2. Step 2: Convert to fraction form
    825,815.80/1,238,723.70 = 699,844.60/x
  3. Step 3: Cross multiply
    825,815.80x = 1,238,723.70 × 699,844.60
  4. Step 4: Simplify right side
    825,815.80x = 866,914,092,337.02
  5. Step 5: Solve for x
    x = 866,914,092,337.02/825,815.80
  6. Step 6: Final answer
    x = 1,049,766.90

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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.