Home / 543,453.94-815,106.96-206,579.38

Finding the Fourth Proportional to 543,453.94, 815,106.96 and 206,579.38

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Solution

The fourth proportional to 543,453.94, 815,106.96 and 206,579.38 is: 309,840.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,453.94 : 815,106.96 = 206,579.38 : x
  2. Step 2: Convert to fraction form
    543,453.94/815,106.96 = 206,579.38/x
  3. Step 3: Cross multiply
    543,453.94x = 815,106.96 × 206,579.38
  4. Step 4: Simplify right side
    543,453.94x = 168,384,290,430.49
  5. Step 5: Solve for x
    x = 168,384,290,430.49/543,453.94
  6. Step 6: Final answer
    x = 309,840.96

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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.