Home / 509,736.12-764,696.33-210,049.89

Finding the Fourth Proportional to 509,736.12, 764,696.33 and 210,049.89

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Solution

The fourth proportional to 509,736.12, 764,696.33 and 210,049.89 is: 315,112.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,736.12 : 764,696.33 = 210,049.89 : x
  2. Step 2: Convert to fraction form
    509,736.12/764,696.33 = 210,049.89/x
  3. Step 3: Cross multiply
    509,736.12x = 764,696.33 × 210,049.89
  4. Step 4: Simplify right side
    509,736.12x = 160,624,378,949.65
  5. Step 5: Solve for x
    x = 160,624,378,949.65/509,736.12
  6. Step 6: Final answer
    x = 315,112.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.