Finding the Fourth Proportional to 3,543,260.80, 5,314,891.20 and 3,305,315.20
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Solution
The fourth proportional to 3,543,260.80, 5,314,891.20 and 3,305,315.20 is: 4,957,972.80
Step by Step Solution
- Step 1: Write the proportion equation
3,543,260.80 : 5,314,891.20 = 3,305,315.20 : x - Step 2: Convert to fraction form
3,543,260.80/5,314,891.20 = 3,305,315.20/x - Step 3: Cross multiply
3,543,260.80x = 5,314,891.20 × 3,305,315.20 - Step 4: Simplify right side
3,543,260.80x = 17,567,390,669,706.24 - Step 5: Solve for x
x = 17,567,390,669,706.24/3,543,260.80 - Step 6: Final answer
x = 4,957,972.80
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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.