Finding the Fourth Proportional to 2,161,187.49, 2,982,184.97 and 1,194,260.11
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Solution
The fourth proportional to 2,161,187.49, 2,982,184.97 and 1,194,260.11 is: 1,647,938.73
Step by Step Solution
- Step 1: Write the proportion equation
2,161,187.49 : 2,982,184.97 = 1,194,260.11 : x - Step 2: Convert to fraction form
2,161,187.49/2,982,184.97 = 1,194,260.11/x - Step 3: Cross multiply
2,161,187.49x = 2,982,184.97 × 1,194,260.11 - Step 4: Simplify right side
2,161,187.49x = 3,561,504,550,312.55 - Step 5: Solve for x
x = 3,561,504,550,312.55/2,161,187.49 - Step 6: Final answer
x = 1,647,938.73
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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.