Home / 775,216.31-1,161,640.42-325,691.42

Finding the Fourth Proportional to 775,216.31, 1,161,640.42 and 325,691.42

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Solution

The fourth proportional to 775,216.31, 1,161,640.42 and 325,691.42 is: 488,039.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,216.31 : 1,161,640.42 = 325,691.42 : x
  2. Step 2: Convert to fraction form
    775,216.31/1,161,640.42 = 325,691.42/x
  3. Step 3: Cross multiply
    775,216.31x = 1,161,640.42 × 325,691.42
  4. Step 4: Simplify right side
    775,216.31x = 378,336,320,009.07
  5. Step 5: Solve for x
    x = 378,336,320,009.07/775,216.31
  6. Step 6: Final answer
    x = 488,039.68

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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.