Home / 809,001.07-1,213,186.38-303,286.21

Finding the Fourth Proportional to 809,001.07, 1,213,186.38 and 303,286.21

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Solution

The fourth proportional to 809,001.07, 1,213,186.38 and 303,286.21 is: 454,811.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,001.07 : 1,213,186.38 = 303,286.21 : x
  2. Step 2: Convert to fraction form
    809,001.07/1,213,186.38 = 303,286.21/x
  3. Step 3: Cross multiply
    809,001.07x = 1,213,186.38 × 303,286.21
  4. Step 4: Simplify right side
    809,001.07x = 367,942,699,213.82
  5. Step 5: Solve for x
    x = 367,942,699,213.82/809,001.07
  6. Step 6: Final answer
    x = 454,811.14

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1.5x scale

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.