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Finding the Fourth Proportional to 520,899.50, 718,933.46 and 306,039.52

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Solution

The fourth proportional to 520,899.50, 718,933.46 and 306,039.52 is: 422,388.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,899.50 : 718,933.46 = 306,039.52 : x
  2. Step 2: Convert to fraction form
    520,899.50/718,933.46 = 306,039.52/x
  3. Step 3: Cross multiply
    520,899.50x = 718,933.46 × 306,039.52
  4. Step 4: Simplify right side
    520,899.50x = 220,022,045,885.47
  5. Step 5: Solve for x
    x = 220,022,045,885.47/520,899.50
  6. Step 6: Final answer
    x = 422,388.67

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