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Finding the Fourth Proportional to 480,940.92, 721,534.32 and 281,428.92

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Solution

The fourth proportional to 480,940.92, 721,534.32 and 281,428.92 is: 422,215.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,940.92 : 721,534.32 = 281,428.92 : x
  2. Step 2: Convert to fraction form
    480,940.92/721,534.32 = 281,428.92/x
  3. Step 3: Cross multiply
    480,940.92x = 721,534.32 × 281,428.92
  4. Step 4: Simplify right side
    480,940.92x = 203,060,624,420.53
  5. Step 5: Solve for x
    x = 203,060,624,420.53/480,940.92
  6. Step 6: Final answer
    x = 422,215.32

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