Home / 420,723.11-580,597.83-229,736.67

Finding the Fourth Proportional to 420,723.11, 580,597.83 and 229,736.67

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Solution

The fourth proportional to 420,723.11, 580,597.83 and 229,736.67 is: 317,036.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,723.11 : 580,597.83 = 229,736.67 : x
  2. Step 2: Convert to fraction form
    420,723.11/580,597.83 = 229,736.67/x
  3. Step 3: Cross multiply
    420,723.11x = 580,597.83 × 229,736.67
  4. Step 4: Simplify right side
    420,723.11x = 133,384,612,073.43
  5. Step 5: Solve for x
    x = 133,384,612,073.43/420,723.11
  6. Step 6: Final answer
    x = 317,036.57

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