Home / 685,134.45-945,474.05-379,204.29

Finding the Fourth Proportional to 685,134.45, 945,474.05 and 379,204.29

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Solution

The fourth proportional to 685,134.45, 945,474.05 and 379,204.29 is: 523,295.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,134.45 : 945,474.05 = 379,204.29 : x
  2. Step 2: Convert to fraction form
    685,134.45/945,474.05 = 379,204.29/x
  3. Step 3: Cross multiply
    685,134.45x = 945,474.05 × 379,204.29
  4. Step 4: Simplify right side
    685,134.45x = 358,527,816,791.69
  5. Step 5: Solve for x
    x = 358,527,816,791.69/685,134.45
  6. Step 6: Final answer
    x = 523,295.56

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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.