Finding the Fourth Proportional to 1,981,745.19, 2,734,716.84 and 1,122,311.63
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Solution
The fourth proportional to 1,981,745.19, 2,734,716.84 and 1,122,311.63 is: 1,548,738.22
Step by Step Solution
- Step 1: Write the proportion equation
1,981,745.19 : 2,734,716.84 = 1,122,311.63 : x - Step 2: Convert to fraction form
1,981,745.19/2,734,716.84 = 1,122,311.63/x - Step 3: Cross multiply
1,981,745.19x = 2,734,716.84 × 1,122,311.63 - Step 4: Simplify right side
1,981,745.19x = 3,069,204,516,916.97 - Step 5: Solve for x
x = 3,069,204,516,916.97/1,981,745.19 - Step 6: Final answer
x = 1,548,738.22
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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.