Home / 809,151.78-1,213,887.57-296,821.68

Finding the Fourth Proportional to 809,151.78, 1,213,887.57 and 296,821.68

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Solution

The fourth proportional to 809,151.78, 1,213,887.57 and 296,821.68 is: 445,291.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,151.78 : 1,213,887.57 = 296,821.68 : x
  2. Step 2: Convert to fraction form
    809,151.78/1,213,887.57 = 296,821.68/x
  3. Step 3: Cross multiply
    809,151.78x = 1,213,887.57 × 296,821.68
  4. Step 4: Simplify right side
    809,151.78x = 360,308,147,858.52
  5. Step 5: Solve for x
    x = 360,308,147,858.52/809,151.78
  6. Step 6: Final answer
    x = 445,291.18

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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.