Finding the Fourth Proportional to 2,311,396.38, 3,189,821.01 and 1,278,887.37
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Solution
The fourth proportional to 2,311,396.38, 3,189,821.01 and 1,278,887.37 is: 1,764,916.58
Step by Step Solution
- Step 1: Write the proportion equation
2,311,396.38 : 3,189,821.01 = 1,278,887.37 : x - Step 2: Convert to fraction form
2,311,396.38/3,189,821.01 = 1,278,887.37/x - Step 3: Cross multiply
2,311,396.38x = 3,189,821.01 × 1,278,887.37 - Step 4: Simplify right side
2,311,396.38x = 4,079,421,779,906.10 - Step 5: Solve for x
x = 4,079,421,779,906.10/2,311,396.38 - Step 6: Final answer
x = 1,764,916.58
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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.