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Finding the Fourth Proportional to 318,491.40, 477,660.24 and 93,790.80

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Solution

The fourth proportional to 318,491.40, 477,660.24 and 93,790.80 is: 140,663.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,491.40 : 477,660.24 = 93,790.80 : x
  2. Step 2: Convert to fraction form
    318,491.40/477,660.24 = 93,790.80/x
  3. Step 3: Cross multiply
    318,491.40x = 477,660.24 × 93,790.80
  4. Step 4: Simplify right side
    318,491.40x = 44,800,136,037.79
  5. Step 5: Solve for x
    x = 44,800,136,037.79/318,491.40
  6. Step 6: Final answer
    x = 140,663.57

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