Finding the Fourth Proportional to 2,257,643.67, 3,387,414.26 and 1,405,428.18
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Solution
The fourth proportional to 2,257,643.67, 3,387,414.26 and 1,405,428.18 is: 2,108,732.89
Step by Step Solution
- Step 1: Write the proportion equation
2,257,643.67 : 3,387,414.26 = 1,405,428.18 : x - Step 2: Convert to fraction form
2,257,643.67/3,387,414.26 = 1,405,428.18/x - Step 3: Cross multiply
2,257,643.67x = 3,387,414.26 × 1,405,428.18 - Step 4: Simplify right side
2,257,643.67x = 4,760,767,458,337.85 - Step 5: Solve for x
x = 4,760,767,458,337.85/2,257,643.67 - Step 6: Final answer
x = 2,108,732.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.