Home / 543,640.20-815,849.10-228,323.40

Finding the Fourth Proportional to 543,640.20, 815,849.10 and 228,323.40

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Solution

The fourth proportional to 543,640.20, 815,849.10 and 228,323.40 is: 342,648.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,640.20 : 815,849.10 = 228,323.40 : x
  2. Step 2: Convert to fraction form
    543,640.20/815,849.10 = 228,323.40/x
  3. Step 3: Cross multiply
    543,640.20x = 815,849.10 × 228,323.40
  4. Step 4: Simplify right side
    543,640.20x = 186,277,440,398.94
  5. Step 5: Solve for x
    x = 186,277,440,398.94/543,640.20
  6. Step 6: Final answer
    x = 342,648.39

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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.