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Finding the Fourth Proportional to 543,227.36, 815,640.93 and 303,810.34

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Solution

The fourth proportional to 543,227.36, 815,640.93 and 303,810.34 is: 456,162.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,227.36 : 815,640.93 = 303,810.34 : x
  2. Step 2: Convert to fraction form
    543,227.36/815,640.93 = 303,810.34/x
  3. Step 3: Cross multiply
    543,227.36x = 815,640.93 × 303,810.34
  4. Step 4: Simplify right side
    543,227.36x = 247,800,148,261.22
  5. Step 5: Solve for x
    x = 247,800,148,261.22/543,227.36
  6. Step 6: Final answer
    x = 456,162.86

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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.