Home / 494,817.40-741,351.30-438,830.20

Finding the Fourth Proportional to 494,817.40, 741,351.30 and 438,830.20

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Solution

The fourth proportional to 494,817.40, 741,351.30 and 438,830.20 is: 657,469.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,817.40 : 741,351.30 = 438,830.20 : x
  2. Step 2: Convert to fraction form
    494,817.40/741,351.30 = 438,830.20/x
  3. Step 3: Cross multiply
    494,817.40x = 741,351.30 × 438,830.20
  4. Step 4: Simplify right side
    494,817.40x = 325,327,339,249.26
  5. Step 5: Solve for x
    x = 325,327,339,249.26/494,817.40
  6. Step 6: Final answer
    x = 657,469.48

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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.