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Finding the Fourth Proportional to 642,863, 964,487.22 and 193,598.48

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Solution

The fourth proportional to 642,863, 964,487.22 and 193,598.48 is: 290,455.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,863 : 964,487.22 = 193,598.48 : x
  2. Step 2: Convert to fraction form
    642,863/964,487.22 = 193,598.48/x
  3. Step 3: Cross multiply
    642,863x = 964,487.22 × 193,598.48
  4. Step 4: Simplify right side
    642,863x = 186,723,259,771.43
  5. Step 5: Solve for x
    x = 186,723,259,771.43/642,863
  6. Step 6: Final answer
    x = 290,455.76

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