Finding the Fourth Proportional to 2,021,388.26, 2,789,198.66 and 1,161,787.90
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Solution
The fourth proportional to 2,021,388.26, 2,789,198.66 and 1,161,787.90 is: 1,603,085.03
Step by Step Solution
- Step 1: Write the proportion equation
2,021,388.26 : 2,789,198.66 = 1,161,787.90 : x - Step 2: Convert to fraction form
2,021,388.26/2,789,198.66 = 1,161,787.90/x - Step 3: Cross multiply
2,021,388.26x = 2,789,198.66 × 1,161,787.90 - Step 4: Simplify right side
2,021,388.26x = 3,240,457,253,884.21 - Step 5: Solve for x
x = 3,240,457,253,884.21/2,021,388.26 - Step 6: Final answer
x = 1,603,085.03
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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.