Home / 2,139,936.37-3,207,895.21-718,998.73

Finding the Fourth Proportional to 2,139,936.37, 3,207,895.21 and 718,998.73

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Solution

The fourth proportional to 2,139,936.37, 3,207,895.21 and 718,998.73 is: 1,077,822.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,936.37 : 3,207,895.21 = 718,998.73 : x
  2. Step 2: Convert to fraction form
    2,139,936.37/3,207,895.21 = 718,998.73/x
  3. Step 3: Cross multiply
    2,139,936.37x = 3,207,895.21 × 718,998.73
  4. Step 4: Simplify right side
    2,139,936.37x = 2,306,472,574,842.09
  5. Step 5: Solve for x
    x = 2,306,472,574,842.09/2,139,936.37
  6. Step 6: Final answer
    x = 1,077,822.97

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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.