Home / 494,971.80-683,060.66-280,107.96

Finding the Fourth Proportional to 494,971.80, 683,060.66 and 280,107.96

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Solution

The fourth proportional to 494,971.80, 683,060.66 and 280,107.96 is: 386,548.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,971.80 : 683,060.66 = 280,107.96 : x
  2. Step 2: Convert to fraction form
    494,971.80/683,060.66 = 280,107.96/x
  3. Step 3: Cross multiply
    494,971.80x = 683,060.66 × 280,107.96
  4. Step 4: Simplify right side
    494,971.80x = 191,330,728,028.85
  5. Step 5: Solve for x
    x = 191,330,728,028.85/494,971.80
  6. Step 6: Final answer
    x = 386,548.74

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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.