Finding the Fourth Proportional to 3,728,891.97, 5,146,266.15 and 2,279,435.85
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Solution
The fourth proportional to 3,728,891.97, 5,146,266.15 and 2,279,435.85 is: 3,145,863.07
Step by Step Solution
- Step 1: Write the proportion equation
3,728,891.97 : 5,146,266.15 = 2,279,435.85 : x - Step 2: Convert to fraction form
3,728,891.97/5,146,266.15 = 2,279,435.85/x - Step 3: Cross multiply
3,728,891.97x = 5,146,266.15 × 2,279,435.85 - Step 4: Simplify right side
3,728,891.97x = 11,730,583,555,951.48 - Step 5: Solve for x
x = 11,730,583,555,951.48/3,728,891.97 - Step 6: Final answer
x = 3,145,863.07
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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.