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Finding the Fourth Proportional to 558,118.12, 770,197.66 and 303,469.40

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Solution

The fourth proportional to 558,118.12, 770,197.66 and 303,469.40 is: 418,784.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,118.12 : 770,197.66 = 303,469.40 : x
  2. Step 2: Convert to fraction form
    558,118.12/770,197.66 = 303,469.40/x
  3. Step 3: Cross multiply
    558,118.12x = 770,197.66 × 303,469.40
  4. Step 4: Simplify right side
    558,118.12x = 233,731,421,761.60
  5. Step 5: Solve for x
    x = 233,731,421,761.60/558,118.12
  6. Step 6: Final answer
    x = 418,784.87

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