Home / 680,568.24-1,021,066.92-320,724.56

Finding the Fourth Proportional to 680,568.24, 1,021,066.92 and 320,724.56

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Solution

The fourth proportional to 680,568.24, 1,021,066.92 and 320,724.56 is: 481,187.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,568.24 : 1,021,066.92 = 320,724.56 : x
  2. Step 2: Convert to fraction form
    680,568.24/1,021,066.92 = 320,724.56/x
  3. Step 3: Cross multiply
    680,568.24x = 1,021,066.92 × 320,724.56
  4. Step 4: Simplify right side
    680,568.24x = 327,481,238,647.56
  5. Step 5: Solve for x
    x = 327,481,238,647.56/680,568.24
  6. Step 6: Final answer
    x = 481,187.95

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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.