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Finding the Fourth Proportional to 396,596.60, 594,304.21 and 219,154.36

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Solution

The fourth proportional to 396,596.60, 594,304.21 and 219,154.36 is: 328,405.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,596.60 : 594,304.21 = 219,154.36 : x
  2. Step 2: Convert to fraction form
    396,596.60/594,304.21 = 219,154.36/x
  3. Step 3: Cross multiply
    396,596.60x = 594,304.21 × 219,154.36
  4. Step 4: Simplify right side
    396,596.60x = 130,244,356,754.21
  5. Step 5: Solve for x
    x = 130,244,356,754.21/396,596.60
  6. Step 6: Final answer
    x = 328,405.12

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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.