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Finding the Fourth Proportional to 410,960.40, 616,440.60 and 115,472.40

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Solution

The fourth proportional to 410,960.40, 616,440.60 and 115,472.40 is: 173,208.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,960.40 : 616,440.60 = 115,472.40 : x
  2. Step 2: Convert to fraction form
    410,960.40/616,440.60 = 115,472.40/x
  3. Step 3: Cross multiply
    410,960.40x = 616,440.60 × 115,472.40
  4. Step 4: Simplify right side
    410,960.40x = 71,181,875,539.44
  5. Step 5: Solve for x
    x = 71,181,875,539.44/410,960.40
  6. Step 6: Final answer
    x = 173,208.60

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