Finding the Fourth Proportional to 3,921,508.73, 5,412,188.55 and 2,202,629.19
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Solution
The fourth proportional to 3,921,508.73, 5,412,188.55 and 2,202,629.19 is: 3,039,912.78
Step by Step Solution
- Step 1: Write the proportion equation
3,921,508.73 : 5,412,188.55 = 2,202,629.19 : x - Step 2: Convert to fraction form
3,921,508.73/5,412,188.55 = 2,202,629.19/x - Step 3: Cross multiply
3,921,508.73x = 5,412,188.55 × 2,202,629.19 - Step 4: Simplify right side
3,921,508.73x = 11,921,044,482,013.77 - Step 5: Solve for x
x = 11,921,044,482,013.77/3,921,508.73 - Step 6: Final answer
x = 3,039,912.78
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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.