Home / 2,711,639.20-4,067,458.80-689,879.20

Finding the Fourth Proportional to 2,711,639.20, 4,067,458.80 and 689,879.20

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Solution

The fourth proportional to 2,711,639.20, 4,067,458.80 and 689,879.20 is: 1,034,818.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,711,639.20 : 4,067,458.80 = 689,879.20 : x
  2. Step 2: Convert to fraction form
    2,711,639.20/4,067,458.80 = 689,879.20/x
  3. Step 3: Cross multiply
    2,711,639.20x = 4,067,458.80 × 689,879.20
  4. Step 4: Simplify right side
    2,711,639.20x = 2,806,055,222,976.96
  5. Step 5: Solve for x
    x = 2,806,055,222,976.96/2,711,639.20
  6. Step 6: Final answer
    x = 1,034,818.80

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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.