Finding the Fourth Proportional to 694,202.76, 1,040,115.42 and 378,880.92
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Solution
The fourth proportional to 694,202.76, 1,040,115.42 and 378,880.92 is: 567,672.60
Step by Step Solution
- Step 1: Write the proportion equation
694,202.76 : 1,040,115.42 = 378,880.92 : x - Step 2: Convert to fraction form
694,202.76/1,040,115.42 = 378,880.92/x - Step 3: Cross multiply
694,202.76x = 1,040,115.42 × 378,880.92 - Step 4: Simplify right side
694,202.76x = 394,079,887,235.79 - Step 5: Solve for x
x = 394,079,887,235.79/694,202.76 - Step 6: Final answer
x = 567,672.60
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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.