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Finding the Fourth Proportional to 396,003.40, 594,005.10 and 321,353.80

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Solution

The fourth proportional to 396,003.40, 594,005.10 and 321,353.80 is: 482,030.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,003.40 : 594,005.10 = 321,353.80 : x
  2. Step 2: Convert to fraction form
    396,003.40/594,005.10 = 321,353.80/x
  3. Step 3: Cross multiply
    396,003.40x = 594,005.10 × 321,353.80
  4. Step 4: Simplify right side
    396,003.40x = 190,885,796,104.38
  5. Step 5: Solve for x
    x = 190,885,796,104.38/396,003.40
  6. Step 6: Final answer
    x = 482,030.70

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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.