Finding the Fourth Proportional to 1,981,277.56, 2,734,164.66 and 1,121,839.18
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Solution
The fourth proportional to 1,981,277.56, 2,734,164.66 and 1,121,839.18 is: 1,548,138.99
Step by Step Solution
- Step 1: Write the proportion equation
1,981,277.56 : 2,734,164.66 = 1,121,839.18 : x - Step 2: Convert to fraction form
1,981,277.56/2,734,164.66 = 1,121,839.18/x - Step 3: Cross multiply
1,981,277.56x = 2,734,164.66 × 1,121,839.18 - Step 4: Simplify right side
1,981,277.56x = 3,067,293,040,159.38 - Step 5: Solve for x
x = 3,067,293,040,159.38/1,981,277.56 - Step 6: Final answer
x = 1,548,138.99
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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.