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Finding the Fourth Proportional to 543,369.80, 815,054.70 and 330,793.40

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Solution

The fourth proportional to 543,369.80, 815,054.70 and 330,793.40 is: 496,190.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,369.80 : 815,054.70 = 330,793.40 : x
  2. Step 2: Convert to fraction form
    543,369.80/815,054.70 = 330,793.40/x
  3. Step 3: Cross multiply
    543,369.80x = 815,054.70 × 330,793.40
  4. Step 4: Simplify right side
    543,369.80x = 269,614,715,398.98
  5. Step 5: Solve for x
    x = 269,614,715,398.98/543,369.80
  6. Step 6: Final answer
    x = 496,190.10

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Similar ratio
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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.