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Finding the Fourth Proportional to 396,308.81, 594,113.30 and 303,230.09

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Solution

The fourth proportional to 396,308.81, 594,113.30 and 303,230.09 is: 454,577.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,308.81 : 594,113.30 = 303,230.09 : x
  2. Step 2: Convert to fraction form
    396,308.81/594,113.30 = 303,230.09/x
  3. Step 3: Cross multiply
    396,308.81x = 594,113.30 × 303,230.09
  4. Step 4: Simplify right side
    396,308.81x = 180,153,029,398.33
  5. Step 5: Solve for x
    x = 180,153,029,398.33/396,308.81
  6. Step 6: Final answer
    x = 454,577.40

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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.