Finding the Fourth Proportional to 3,428,906.96, 5,138,383.80 and 1,929,797.84
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Solution
The fourth proportional to 3,428,906.96, 5,138,383.80 and 1,929,797.84 is: 2,891,895.89
Step by Step Solution
- Step 1: Write the proportion equation
3,428,906.96 : 5,138,383.80 = 1,929,797.84 : x - Step 2: Convert to fraction form
3,428,906.96/5,138,383.80 = 1,929,797.84/x - Step 3: Cross multiply
3,428,906.96x = 5,138,383.80 × 1,929,797.84 - Step 4: Simplify right side
3,428,906.96x = 9,916,041,958,330.99 - Step 5: Solve for x
x = 9,916,041,958,330.99/3,428,906.96 - Step 6: Final answer
x = 2,891,895.89
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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.