Home / 494,399.30-682,284.47-279,571.50

Finding the Fourth Proportional to 494,399.30, 682,284.47 and 279,571.50

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Solution

The fourth proportional to 494,399.30, 682,284.47 and 279,571.50 is: 385,816.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,399.30 : 682,284.47 = 279,571.50 : x
  2. Step 2: Convert to fraction form
    494,399.30/682,284.47 = 279,571.50/x
  3. Step 3: Cross multiply
    494,399.30x = 682,284.47 × 279,571.50
  4. Step 4: Simplify right side
    494,399.30x = 190,747,291,306.75
  5. Step 5: Solve for x
    x = 190,747,291,306.75/494,399.30
  6. Step 6: Final answer
    x = 385,816.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.