Home / 717,286.56-989,558.37-426,839.97

Finding the Fourth Proportional to 717,286.56, 989,558.37 and 426,839.97

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Solution

The fourth proportional to 717,286.56, 989,558.37 and 426,839.97 is: 588,862.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,286.56 : 989,558.37 = 426,839.97 : x
  2. Step 2: Convert to fraction form
    717,286.56/989,558.37 = 426,839.97/x
  3. Step 3: Cross multiply
    717,286.56x = 989,558.37 × 426,839.97
  4. Step 4: Simplify right side
    717,286.56x = 422,383,064,964.05
  5. Step 5: Solve for x
    x = 422,383,064,964.05/717,286.56
  6. Step 6: Final answer
    x = 588,862.37

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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.