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Finding the Fourth Proportional to 494,805.02, 682,912.58 and 339,628.78

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Solution

The fourth proportional to 494,805.02, 682,912.58 and 339,628.78 is: 468,743.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,805.02 : 682,912.58 = 339,628.78 : x
  2. Step 2: Convert to fraction form
    494,805.02/682,912.58 = 339,628.78/x
  3. Step 3: Cross multiply
    494,805.02x = 682,912.58 × 339,628.78
  4. Step 4: Simplify right side
    494,805.02x = 231,936,762,986.63
  5. Step 5: Solve for x
    x = 231,936,762,986.63/494,805.02
  6. Step 6: Final answer
    x = 468,743.76

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1.5x scale

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.