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Finding the Fourth Proportional to 401,808.45, 554,495.21 and 220,520.84

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Solution

The fourth proportional to 401,808.45, 554,495.21 and 220,520.84 is: 304,318.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,808.45 : 554,495.21 = 220,520.84 : x
  2. Step 2: Convert to fraction form
    401,808.45/554,495.21 = 220,520.84/x
  3. Step 3: Cross multiply
    401,808.45x = 554,495.21 × 220,520.84
  4. Step 4: Simplify right side
    401,808.45x = 122,277,750,025.74
  5. Step 5: Solve for x
    x = 122,277,750,025.74/401,808.45
  6. Step 6: Final answer
    x = 304,318.51

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