Home / 809,002.13-1,213,187.78-303,287.45

Finding the Fourth Proportional to 809,002.13, 1,213,187.78 and 303,287.45

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Solution

The fourth proportional to 809,002.13, 1,213,187.78 and 303,287.45 is: 454,812.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,002.13 : 1,213,187.78 = 303,287.45 : x
  2. Step 2: Convert to fraction form
    809,002.13/1,213,187.78 = 303,287.45/x
  3. Step 3: Cross multiply
    809,002.13x = 1,213,187.78 × 303,287.45
  4. Step 4: Simplify right side
    809,002.13x = 367,944,622,859.64
  5. Step 5: Solve for x
    x = 367,944,622,859.64/809,002.13
  6. Step 6: Final answer
    x = 454,812.93

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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.