Home / 815,944.38-1,125,640.98-543,747.12

Finding the Fourth Proportional to 815,944.38, 1,125,640.98 and 543,747.12

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Solution

The fourth proportional to 815,944.38, 1,125,640.98 and 543,747.12 is: 750,129.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,944.38 : 1,125,640.98 = 543,747.12 : x
  2. Step 2: Convert to fraction form
    815,944.38/1,125,640.98 = 543,747.12/x
  3. Step 3: Cross multiply
    815,944.38x = 1,125,640.98 × 543,747.12
  4. Step 4: Simplify right side
    815,944.38x = 612,064,041,028.98
  5. Step 5: Solve for x
    x = 612,064,041,028.98/815,944.38
  6. Step 6: Final answer
    x = 750,129.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.