Home / 494,727.84-682,739.67-279,863.60

Finding the Fourth Proportional to 494,727.84, 682,739.67 and 279,863.60

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Solution

The fourth proportional to 494,727.84, 682,739.67 and 279,863.60 is: 386,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,727.84 : 682,739.67 = 279,863.60 : x
  2. Step 2: Convert to fraction form
    494,727.84/682,739.67 = 279,863.60/x
  3. Step 3: Cross multiply
    494,727.84x = 682,739.67 × 279,863.60
  4. Step 4: Simplify right side
    494,727.84x = 191,073,981,909.01
  5. Step 5: Solve for x
    x = 191,073,981,909.01/494,727.84
  6. Step 6: Final answer
    x = 386,220.40

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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.