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Finding the Fourth Proportional to 378,516.77, 522,353.61 and 206,435.01

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Solution

The fourth proportional to 378,516.77, 522,353.61 and 206,435.01 is: 284,880.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,516.77 : 522,353.61 = 206,435.01 : x
  2. Step 2: Convert to fraction form
    378,516.77/522,353.61 = 206,435.01/x
  3. Step 3: Cross multiply
    378,516.77x = 522,353.61 × 206,435.01
  4. Step 4: Simplify right side
    378,516.77x = 107,832,072,703.89
  5. Step 5: Solve for x
    x = 107,832,072,703.89/378,516.77
  6. Step 6: Final answer
    x = 284,880.57

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