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Finding the Fourth Proportional to 543,344.20, 815,016.30 and 330,767.80

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Solution

The fourth proportional to 543,344.20, 815,016.30 and 330,767.80 is: 496,151.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,344.20 : 815,016.30 = 330,767.80 : x
  2. Step 2: Convert to fraction form
    543,344.20/815,016.30 = 330,767.80/x
  3. Step 3: Cross multiply
    543,344.20x = 815,016.30 × 330,767.80
  4. Step 4: Simplify right side
    543,344.20x = 269,581,148,515.14
  5. Step 5: Solve for x
    x = 269,581,148,515.14/543,344.20
  6. Step 6: Final answer
    x = 496,151.70

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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.