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Finding the Fourth Proportional to 631,840.56, 947,809.80 and 211,117.92

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Solution

The fourth proportional to 631,840.56, 947,809.80 and 211,117.92 is: 316,693.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,840.56 : 947,809.80 = 211,117.92 : x
  2. Step 2: Convert to fraction form
    631,840.56/947,809.80 = 211,117.92/x
  3. Step 3: Cross multiply
    631,840.56x = 947,809.80 × 211,117.92
  4. Step 4: Simplify right side
    631,840.56x = 200,099,633,531.62
  5. Step 5: Solve for x
    x = 200,099,633,531.62/631,840.56
  6. Step 6: Final answer
    x = 316,693.24

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