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Finding the Fourth Proportional to 396,450.40, 593,460.60 and 218,412.40

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Solution

The fourth proportional to 396,450.40, 593,460.60 and 218,412.40 is: 326,949.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,450.40 : 593,460.60 = 218,412.40 : x
  2. Step 2: Convert to fraction form
    396,450.40/593,460.60 = 218,412.40/x
  3. Step 3: Cross multiply
    396,450.40x = 593,460.60 × 218,412.40
  4. Step 4: Simplify right side
    396,450.40x = 129,619,153,951.44
  5. Step 5: Solve for x
    x = 129,619,153,951.44/396,450.40
  6. Step 6: Final answer
    x = 326,949.23

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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.