Home / 494,222.70-682,019.92-279,355.20

Finding the Fourth Proportional to 494,222.70, 682,019.92 and 279,355.20

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Solution

The fourth proportional to 494,222.70, 682,019.92 and 279,355.20 is: 385,505.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,222.70 : 682,019.92 = 279,355.20 : x
  2. Step 2: Convert to fraction form
    494,222.70/682,019.92 = 279,355.20/x
  3. Step 3: Cross multiply
    494,222.70x = 682,019.92 × 279,355.20
  4. Step 4: Simplify right side
    494,222.70x = 190,525,811,155.58
  5. Step 5: Solve for x
    x = 190,525,811,155.58/494,222.70
  6. Step 6: Final answer
    x = 385,505.99

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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.