Home / 853,249.22-1,279,378.67-403,966.30

Finding the Fourth Proportional to 853,249.22, 1,279,378.67 and 403,966.30

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Solution

The fourth proportional to 853,249.22, 1,279,378.67 and 403,966.30 is: 605,715.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,249.22 : 1,279,378.67 = 403,966.30 : x
  2. Step 2: Convert to fraction form
    853,249.22/1,279,378.67 = 403,966.30/x
  3. Step 3: Cross multiply
    853,249.22x = 1,279,378.67 × 403,966.30
  4. Step 4: Simplify right side
    853,249.22x = 516,825,861,221.93
  5. Step 5: Solve for x
    x = 516,825,861,221.93/853,249.22
  6. Step 6: Final answer
    x = 605,715.01

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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.