Home / 853,109.80-1,279,050.30-479,247.40

Finding the Fourth Proportional to 853,109.80, 1,279,050.30 and 479,247.40

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Solution

The fourth proportional to 853,109.80, 1,279,050.30 and 479,247.40 is: 718,525.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,109.80 : 1,279,050.30 = 479,247.40 : x
  2. Step 2: Convert to fraction form
    853,109.80/1,279,050.30 = 479,247.40/x
  3. Step 3: Cross multiply
    853,109.80x = 1,279,050.30 × 479,247.40
  4. Step 4: Simplify right side
    853,109.80x = 612,981,530,744.22
  5. Step 5: Solve for x
    x = 612,981,530,744.22/853,109.80
  6. Step 6: Final answer
    x = 718,525.95

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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.