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Finding the Fourth Proportional to 396,027.60, 594,041.40 and 330,709.20

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Solution

The fourth proportional to 396,027.60, 594,041.40 and 330,709.20 is: 496,063.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,027.60 : 594,041.40 = 330,709.20 : x
  2. Step 2: Convert to fraction form
    396,027.60/594,041.40 = 330,709.20/x
  3. Step 3: Cross multiply
    396,027.60x = 594,041.40 × 330,709.20
  4. Step 4: Simplify right side
    396,027.60x = 196,454,956,160.88
  5. Step 5: Solve for x
    x = 196,454,956,160.88/396,027.60
  6. Step 6: Final answer
    x = 496,063.80

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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.