Home / 685,241.70-1,028,872.97-382,227.87

Finding the Fourth Proportional to 685,241.70, 1,028,872.97 and 382,227.87

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Solution

The fourth proportional to 685,241.70, 1,028,872.97 and 382,227.87 is: 573,905.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,241.70 : 1,028,872.97 = 382,227.87 : x
  2. Step 2: Convert to fraction form
    685,241.70/1,028,872.97 = 382,227.87/x
  3. Step 3: Cross multiply
    685,241.70x = 1,028,872.97 × 382,227.87
  4. Step 4: Simplify right side
    685,241.70x = 393,263,921,912.54
  5. Step 5: Solve for x
    x = 393,263,921,912.54/685,241.70
  6. Step 6: Final answer
    x = 573,905.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.