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Finding the Fourth Proportional to 396,007.20, 594,010.80 and 356,608.80

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Solution

The fourth proportional to 396,007.20, 594,010.80 and 356,608.80 is: 534,913.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,007.20 : 594,010.80 = 356,608.80 : x
  2. Step 2: Convert to fraction form
    396,007.20/594,010.80 = 356,608.80/x
  3. Step 3: Cross multiply
    396,007.20x = 594,010.80 × 356,608.80
  4. Step 4: Simplify right side
    396,007.20x = 211,829,478,575.04
  5. Step 5: Solve for x
    x = 211,829,478,575.04/396,007.20
  6. Step 6: Final answer
    x = 534,913.20

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1.5x scale

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.