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Finding the Fourth Proportional to 486, 726.98 and 403.79

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Solution

The fourth proportional to 486, 726.98 and 403.79 is: 604.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    486 : 726.98 = 403.79 : x
  2. Step 2: Convert to fraction form
    486/726.98 = 403.79/x
  3. Step 3: Cross multiply
    486x = 726.98 × 403.79
  4. Step 4: Simplify right side
    486x = 293,541.60
  5. Step 5: Solve for x
    x = 293,541.60/486
  6. Step 6: Final answer
    x = 604.00

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