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Finding the Fourth Proportional to 658,758.80, 988,196.70 and 274,422.80

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Solution

The fourth proportional to 658,758.80, 988,196.70 and 274,422.80 is: 411,658.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,758.80 : 988,196.70 = 274,422.80 : x
  2. Step 2: Convert to fraction form
    658,758.80/988,196.70 = 274,422.80/x
  3. Step 3: Cross multiply
    658,758.80x = 988,196.70 × 274,422.80
  4. Step 4: Simplify right side
    658,758.80x = 271,183,705,364.76
  5. Step 5: Solve for x
    x = 271,183,705,364.76/658,758.80
  6. Step 6: Final answer
    x = 411,658.57

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