Home / 1,294,322.88-1,786,174.44-721,399.92

Finding the Fourth Proportional to 1,294,322.88, 1,786,174.44 and 721,399.92

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Solution

The fourth proportional to 1,294,322.88, 1,786,174.44 and 721,399.92 is: 995,536.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,322.88 : 1,786,174.44 = 721,399.92 : x
  2. Step 2: Convert to fraction form
    1,294,322.88/1,786,174.44 = 721,399.92/x
  3. Step 3: Cross multiply
    1,294,322.88x = 1,786,174.44 × 721,399.92
  4. Step 4: Simplify right side
    1,294,322.88x = 1,288,546,098,122.05
  5. Step 5: Solve for x
    x = 1,288,546,098,122.05/1,294,322.88
  6. Step 6: Final answer
    x = 995,536.83

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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.