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Finding the Fourth Proportional to 505,819.94, 758,729.91 and 281,072.89

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Solution

The fourth proportional to 505,819.94, 758,729.91 and 281,072.89 is: 421,609.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,819.94 : 758,729.91 = 281,072.89 : x
  2. Step 2: Convert to fraction form
    505,819.94/758,729.91 = 281,072.89/x
  3. Step 3: Cross multiply
    505,819.94x = 758,729.91 × 281,072.89
  4. Step 4: Simplify right side
    505,819.94x = 213,258,405,477.20
  5. Step 5: Solve for x
    x = 213,258,405,477.20/505,819.94
  6. Step 6: Final answer
    x = 421,609.33

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