Home / 693,896.49-1,040,135.72-393,743.07

Finding the Fourth Proportional to 693,896.49, 1,040,135.72 and 393,743.07

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Solution

The fourth proportional to 693,896.49, 1,040,135.72 and 393,743.07 is: 590,212.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,896.49 : 1,040,135.72 = 393,743.07 : x
  2. Step 2: Convert to fraction form
    693,896.49/1,040,135.72 = 393,743.07/x
  3. Step 3: Cross multiply
    693,896.49x = 1,040,135.72 × 393,743.07
  4. Step 4: Simplify right side
    693,896.49x = 409,546,229,640.75
  5. Step 5: Solve for x
    x = 409,546,229,640.75/693,896.49
  6. Step 6: Final answer
    x = 590,212.28

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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.