Home / 1,206,139.75-1,817,879.20-1,039,669.25

Finding the Fourth Proportional to 1,206,139.75, 1,817,879.20 and 1,039,669.25

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Solution

The fourth proportional to 1,206,139.75, 1,817,879.20 and 1,039,669.25 is: 1,566,976.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,139.75 : 1,817,879.20 = 1,039,669.25 : x
  2. Step 2: Convert to fraction form
    1,206,139.75/1,817,879.20 = 1,039,669.25/x
  3. Step 3: Cross multiply
    1,206,139.75x = 1,817,879.20 × 1,039,669.25
  4. Step 4: Simplify right side
    1,206,139.75x = 1,889,993,092,766.03
  5. Step 5: Solve for x
    x = 1,889,993,092,766.03/1,206,139.75
  6. Step 6: Final answer
    x = 1,566,976.88

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.