Finding the Fourth Proportional to 2,290,815.44, 3,162,906.84 and 1,431,761.84
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Solution
The fourth proportional to 2,290,815.44, 3,162,906.84 and 1,431,761.84 is: 1,976,819.80
Step by Step Solution
- Step 1: Write the proportion equation
2,290,815.44 : 3,162,906.84 = 1,431,761.84 : x - Step 2: Convert to fraction form
2,290,815.44/3,162,906.84 = 1,431,761.84/x - Step 3: Cross multiply
2,290,815.44x = 3,162,906.84 × 1,431,761.84 - Step 4: Simplify right side
2,290,815.44x = 4,528,529,316,986.99 - Step 5: Solve for x
x = 4,528,529,316,986.99/2,290,815.44 - Step 6: Final answer
x = 1,976,819.80
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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.