Home / 543,359.20-815,427.60-228,042.40

Finding the Fourth Proportional to 543,359.20, 815,427.60 and 228,042.40

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Solution

The fourth proportional to 543,359.20, 815,427.60 and 228,042.40 is: 342,226.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,359.20 : 815,427.60 = 228,042.40 : x
  2. Step 2: Convert to fraction form
    543,359.20/815,427.60 = 228,042.40/x
  3. Step 3: Cross multiply
    543,359.20x = 815,427.60 × 228,042.40
  4. Step 4: Simplify right side
    543,359.20x = 185,952,066,930.24
  5. Step 5: Solve for x
    x = 185,952,066,930.24/543,359.20
  6. Step 6: Final answer
    x = 342,226.78

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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.