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Finding the Fourth Proportional to 378,811.44, 522,762.84 and 206,730.76

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Solution

The fourth proportional to 378,811.44, 522,762.84 and 206,730.76 is: 285,290.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,811.44 : 522,762.84 = 206,730.76 : x
  2. Step 2: Convert to fraction form
    378,811.44/522,762.84 = 206,730.76/x
  3. Step 3: Cross multiply
    378,811.44x = 522,762.84 × 206,730.76
  4. Step 4: Simplify right side
    378,811.44x = 108,071,159,212.96
  5. Step 5: Solve for x
    x = 108,071,159,212.96/378,811.44
  6. Step 6: Final answer
    x = 285,290.11

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