Home / 853,249.10-1,279,640.37-320,729.18

Finding the Fourth Proportional to 853,249.10, 1,279,640.37 and 320,729.18

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Solution

The fourth proportional to 853,249.10, 1,279,640.37 and 320,729.18 is: 481,006.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,249.10 : 1,279,640.37 = 320,729.18 : x
  2. Step 2: Convert to fraction form
    853,249.10/1,279,640.37 = 320,729.18/x
  3. Step 3: Cross multiply
    853,249.10x = 1,279,640.37 × 320,729.18
  4. Step 4: Simplify right side
    853,249.10x = 410,418,006,565.00
  5. Step 5: Solve for x
    x = 410,418,006,565.00/853,249.10
  6. Step 6: Final answer
    x = 481,006.08

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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.