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Finding the Fourth Proportional to 640,992, 961,500.96 and 197,760

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Solution

The fourth proportional to 640,992, 961,500.96 and 197,760 is: 296,644.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,992 : 961,500.96 = 197,760 : x
  2. Step 2: Convert to fraction form
    640,992/961,500.96 = 197,760/x
  3. Step 3: Cross multiply
    640,992x = 961,500.96 × 197,760
  4. Step 4: Simplify right side
    640,992x = 190,146,429,849.60
  5. Step 5: Solve for x
    x = 190,146,429,849.60/640,992
  6. Step 6: Final answer
    x = 296,644.00

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