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Finding the Fourth Proportional to 307,805.76, 423,824.52 and 262,381.92

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Solution

The fourth proportional to 307,805.76, 423,824.52 and 262,381.92 is: 361,279.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,805.76 : 423,824.52 = 262,381.92 : x
  2. Step 2: Convert to fraction form
    307,805.76/423,824.52 = 262,381.92/x
  3. Step 3: Cross multiply
    307,805.76x = 423,824.52 × 262,381.92
  4. Step 4: Simplify right side
    307,805.76x = 111,203,891,300.68
  5. Step 5: Solve for x
    x = 111,203,891,300.68/307,805.76
  6. Step 6: Final answer
    x = 361,279.44

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