Home / 543,614.20-815,810.10-228,297.40

Finding the Fourth Proportional to 543,614.20, 815,810.10 and 228,297.40

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Solution

The fourth proportional to 543,614.20, 815,810.10 and 228,297.40 is: 342,609.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,614.20 : 815,810.10 = 228,297.40 : x
  2. Step 2: Convert to fraction form
    543,614.20/815,810.10 = 228,297.40/x
  3. Step 3: Cross multiply
    543,614.20x = 815,810.10 × 228,297.40
  4. Step 4: Simplify right side
    543,614.20x = 186,247,324,723.74
  5. Step 5: Solve for x
    x = 186,247,324,723.74/543,614.20
  6. Step 6: Final answer
    x = 342,609.38

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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.