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Finding the Fourth Proportional to 520,819.88, 718,751.81 and 305,958.06

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Solution

The fourth proportional to 520,819.88, 718,751.81 and 305,958.06 is: 422,234.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,819.88 : 718,751.81 = 305,958.06 : x
  2. Step 2: Convert to fraction form
    520,819.88/718,751.81 = 305,958.06/x
  3. Step 3: Cross multiply
    520,819.88x = 718,751.81 × 305,958.06
  4. Step 4: Simplify right side
    520,819.88x = 219,907,910,173.98
  5. Step 5: Solve for x
    x = 219,907,910,173.98/520,819.88
  6. Step 6: Final answer
    x = 422,234.10

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