Finding the Fourth Proportional to 3,843,612.36, 5,304,995.94 and 3,198,403.62
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Solution
The fourth proportional to 3,843,612.36, 5,304,995.94 and 3,198,403.62 is: 4,414,471.76
Step by Step Solution
- Step 1: Write the proportion equation
3,843,612.36 : 5,304,995.94 = 3,198,403.62 : x - Step 2: Convert to fraction form
3,843,612.36/5,304,995.94 = 3,198,403.62/x - Step 3: Cross multiply
3,843,612.36x = 5,304,995.94 × 3,198,403.62 - Step 4: Simplify right side
3,843,612.36x = 16,967,518,218,581.30 - Step 5: Solve for x
x = 16,967,518,218,581.30/3,843,612.36 - Step 6: Final answer
x = 4,414,471.76
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1.5x scale
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.