Finding the Fourth Proportional to 1,491,814.13, 2,239,286.54 and 1,322,121.49
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Solution
The fourth proportional to 1,491,814.13, 2,239,286.54 and 1,322,121.49 is: 1,984,569.51
Step by Step Solution
- Step 1: Write the proportion equation
1,491,814.13 : 2,239,286.54 = 1,322,121.49 : x - Step 2: Convert to fraction form
1,491,814.13/2,239,286.54 = 1,322,121.49/x - Step 3: Cross multiply
1,491,814.13x = 2,239,286.54 × 1,322,121.49 - Step 4: Simplify right side
1,491,814.13x = 2,960,608,848,311.39 - Step 5: Solve for x
x = 2,960,608,848,311.39/1,491,814.13 - Step 6: Final answer
x = 1,984,569.51
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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.