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Finding the Fourth Proportional to 400,999.36, 553,240.73 and 228,793.06

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Solution

The fourth proportional to 400,999.36, 553,240.73 and 228,793.06 is: 315,655.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,999.36 : 553,240.73 = 228,793.06 : x
  2. Step 2: Convert to fraction form
    400,999.36/553,240.73 = 228,793.06/x
  3. Step 3: Cross multiply
    400,999.36x = 553,240.73 × 228,793.06
  4. Step 4: Simplify right side
    400,999.36x = 126,577,637,684.89
  5. Step 5: Solve for x
    x = 126,577,637,684.89/400,999.36
  6. Step 6: Final answer
    x = 315,655.46

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