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Finding the Fourth Proportional to 547,865.15, 756,039.78 and 306,149.69

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Solution

The fourth proportional to 547,865.15, 756,039.78 and 306,149.69 is: 422,478.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,865.15 : 756,039.78 = 306,149.69 : x
  2. Step 2: Convert to fraction form
    547,865.15/756,039.78 = 306,149.69/x
  3. Step 3: Cross multiply
    547,865.15x = 756,039.78 × 306,149.69
  4. Step 4: Simplify right side
    547,865.15x = 231,461,340,494.47
  5. Step 5: Solve for x
    x = 231,461,340,494.47/547,865.15
  6. Step 6: Final answer
    x = 422,478.67

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