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Finding the Fourth Proportional to 396,327.60, 594,491.40 and 382,330.80

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Solution

The fourth proportional to 396,327.60, 594,491.40 and 382,330.80 is: 573,496.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,327.60 : 594,491.40 = 382,330.80 : x
  2. Step 2: Convert to fraction form
    396,327.60/594,491.40 = 382,330.80/x
  3. Step 3: Cross multiply
    396,327.60x = 594,491.40 × 382,330.80
  4. Step 4: Simplify right side
    396,327.60x = 227,292,372,555.12
  5. Step 5: Solve for x
    x = 227,292,372,555.12/396,327.60
  6. Step 6: Final answer
    x = 573,496.20

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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.