Home / 852,736.80-1,278,430.46-320,198.52

Finding the Fourth Proportional to 852,736.80, 1,278,430.46 and 320,198.52

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Solution

The fourth proportional to 852,736.80, 1,278,430.46 and 320,198.52 is: 480,044.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,736.80 : 1,278,430.46 = 320,198.52 : x
  2. Step 2: Convert to fraction form
    852,736.80/1,278,430.46 = 320,198.52/x
  3. Step 3: Cross multiply
    852,736.80x = 1,278,430.46 × 320,198.52
  4. Step 4: Simplify right side
    852,736.80x = 409,351,541,214.92
  5. Step 5: Solve for x
    x = 409,351,541,214.92/852,736.80
  6. Step 6: Final answer
    x = 480,044.42

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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.