Home / 2,079,879.05-2,869,969.25-1,220,125.61

Finding the Fourth Proportional to 2,079,879.05, 2,869,969.25 and 1,220,125.61

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Solution

The fourth proportional to 2,079,879.05, 2,869,969.25 and 1,220,125.61 is: 1,683,618.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079,879.05 : 2,869,969.25 = 1,220,125.61 : x
  2. Step 2: Convert to fraction form
    2,079,879.05/2,869,969.25 = 1,220,125.61/x
  3. Step 3: Cross multiply
    2,079,879.05x = 2,869,969.25 × 1,220,125.61
  4. Step 4: Simplify right side
    2,079,879.05x = 3,501,722,992,062.73
  5. Step 5: Solve for x
    x = 3,501,722,992,062.73/2,079,879.05
  6. Step 6: Final answer
    x = 1,683,618.57

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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.