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Finding the Fourth Proportional to 712,163, 982,784.94 and 394,211

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Solution

The fourth proportional to 712,163, 982,784.94 and 394,211 is: 544,011.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,163 : 982,784.94 = 394,211 : x
  2. Step 2: Convert to fraction form
    712,163/982,784.94 = 394,211/x
  3. Step 3: Cross multiply
    712,163x = 982,784.94 × 394,211
  4. Step 4: Simplify right side
    712,163x = 387,424,633,982.34
  5. Step 5: Solve for x
    x = 387,424,633,982.34/712,163
  6. Step 6: Final answer
    x = 544,011.18

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