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Finding the Fourth Proportional to 610,859.64, 916,069.92 and 211,391.96

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Solution

The fourth proportional to 610,859.64, 916,069.92 and 211,391.96 is: 317,011.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,859.64 : 916,069.92 = 211,391.96 : x
  2. Step 2: Convert to fraction form
    610,859.64/916,069.92 = 211,391.96/x
  3. Step 3: Cross multiply
    610,859.64x = 916,069.92 × 211,391.96
  4. Step 4: Simplify right side
    610,859.64x = 193,649,815,885.84
  5. Step 5: Solve for x
    x = 193,649,815,885.84/610,859.64
  6. Step 6: Final answer
    x = 317,011.97

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