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Finding the Fourth Proportional to 396,289.60, 594,520.80 and 130,004.80

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Solution

The fourth proportional to 396,289.60, 594,520.80 and 130,004.80 is: 195,035.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,289.60 : 594,520.80 = 130,004.80 : x
  2. Step 2: Convert to fraction form
    396,289.60/594,520.80 = 130,004.80/x
  3. Step 3: Cross multiply
    396,289.60x = 594,520.80 × 130,004.80
  4. Step 4: Simplify right side
    396,289.60x = 77,290,557,699.84
  5. Step 5: Solve for x
    x = 77,290,557,699.84/396,289.60
  6. Step 6: Final answer
    x = 195,035.54

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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.