Home / 543,743.72-815,623.78-188,769.02

Finding the Fourth Proportional to 543,743.72, 815,623.78 and 188,769.02

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Solution

The fourth proportional to 543,743.72, 815,623.78 and 188,769.02 is: 283,156.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,743.72 : 815,623.78 = 188,769.02 : x
  2. Step 2: Convert to fraction form
    543,743.72/815,623.78 = 188,769.02/x
  3. Step 3: Cross multiply
    543,743.72x = 815,623.78 × 188,769.02
  4. Step 4: Simplify right side
    543,743.72x = 153,964,501,639.30
  5. Step 5: Solve for x
    x = 153,964,501,639.30/543,743.72
  6. Step 6: Final answer
    x = 283,156.38

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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.