Home / 1,786,940.34-2,681,739.09-721,991.61

Finding the Fourth Proportional to 1,786,940.34, 2,681,739.09 and 721,991.61

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Solution

The fourth proportional to 1,786,940.34, 2,681,739.09 and 721,991.61 is: 1,083,524.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786,940.34 : 2,681,739.09 = 721,991.61 : x
  2. Step 2: Convert to fraction form
    1,786,940.34/2,681,739.09 = 721,991.61/x
  3. Step 3: Cross multiply
    1,786,940.34x = 2,681,739.09 × 721,991.61
  4. Step 4: Simplify right side
    1,786,940.34x = 1,936,193,123,189.03
  5. Step 5: Solve for x
    x = 1,936,193,123,189.03/1,786,940.34
  6. Step 6: Final answer
    x = 1,083,524.21

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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.