Finding the Fourth Proportional to 3,917,872.60, 5,874,769.84 and 1,393,160.92
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Solution
The fourth proportional to 3,917,872.60, 5,874,769.84 and 1,393,160.92 is: 2,089,016.31
Step by Step Solution
- Step 1: Write the proportion equation
3,917,872.60 : 5,874,769.84 = 1,393,160.92 : x - Step 2: Convert to fraction form
3,917,872.60/5,874,769.84 = 1,393,160.92/x - Step 3: Cross multiply
3,917,872.60x = 5,874,769.84 × 1,393,160.92 - Step 4: Simplify right side
3,917,872.60x = 8,184,499,755,082.65 - Step 5: Solve for x
x = 8,184,499,755,082.65/3,917,872.60 - Step 6: Final answer
x = 2,089,016.31
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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.