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Finding the Fourth Proportional to 400,428.40, 600,982.80 and 163,940.80

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Solution

The fourth proportional to 400,428.40, 600,982.80 and 163,940.80 is: 246,050.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,428.40 : 600,982.80 = 163,940.80 : x
  2. Step 2: Convert to fraction form
    400,428.40/600,982.80 = 163,940.80/x
  3. Step 3: Cross multiply
    400,428.40x = 600,982.80 × 163,940.80
  4. Step 4: Simplify right side
    400,428.40x = 98,525,601,018.24
  5. Step 5: Solve for x
    x = 98,525,601,018.24/400,428.40
  6. Step 6: Final answer
    x = 246,050.48

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