Finding the Fourth Proportional to 1,981,475.44, 2,734,436.51 and 1,207,106.23
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Solution
The fourth proportional to 1,981,475.44, 2,734,436.51 and 1,207,106.23 is: 1,665,806.84
Step by Step Solution
- Step 1: Write the proportion equation
1,981,475.44 : 2,734,436.51 = 1,207,106.23 : x - Step 2: Convert to fraction form
1,981,475.44/2,734,436.51 = 1,207,106.23/x - Step 3: Cross multiply
1,981,475.44x = 2,734,436.51 × 1,207,106.23 - Step 4: Simplify right side
1,981,475.44x = 3,300,755,340,724.93 - Step 5: Solve for x
x = 3,300,755,340,724.93/1,981,475.44 - Step 6: Final answer
x = 1,665,806.84
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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.