Finding the Fourth Proportional to 3,493,694.32, 4,821,517.92 and 2,117,158.56
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Solution
The fourth proportional to 3,493,694.32, 4,821,517.92 and 2,117,158.56 is: 2,921,811.99
Step by Step Solution
- Step 1: Write the proportion equation
3,493,694.32 : 4,821,517.92 = 2,117,158.56 : x - Step 2: Convert to fraction form
3,493,694.32/4,821,517.92 = 2,117,158.56/x - Step 3: Cross multiply
3,493,694.32x = 4,821,517.92 × 2,117,158.56 - Step 4: Simplify right side
3,493,694.32x = 10,207,917,936,521.39 - Step 5: Solve for x
x = 10,207,917,936,521.39/3,493,694.32 - Step 6: Final answer
x = 2,921,811.99
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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.