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Finding the Fourth Proportional to 396,566.28, 591,996.87 and 339,795

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Solution

The fourth proportional to 396,566.28, 591,996.87 and 339,795 is: 507,248.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,566.28 : 591,996.87 = 339,795 : x
  2. Step 2: Convert to fraction form
    396,566.28/591,996.87 = 339,795/x
  3. Step 3: Cross multiply
    396,566.28x = 591,996.87 × 339,795
  4. Step 4: Simplify right side
    396,566.28x = 201,157,576,441.65
  5. Step 5: Solve for x
    x = 201,157,576,441.65/396,566.28
  6. Step 6: Final answer
    x = 507,248.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.