Finding the Fourth Proportional to 5,479,841.20, 8,220,928.20 and 1,693,706.80
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Solution
The fourth proportional to 5,479,841.20, 8,220,928.20 and 1,693,706.80 is: 2,540,920.71
Step by Step Solution
- Step 1: Write the proportion equation
5,479,841.20 : 8,220,928.20 = 1,693,706.80 : x - Step 2: Convert to fraction form
5,479,841.20/8,220,928.20 = 1,693,706.80/x - Step 3: Cross multiply
5,479,841.20x = 8,220,928.20 × 1,693,706.80 - Step 4: Simplify right side
5,479,841.20x = 13,923,841,994,651.76 - Step 5: Solve for x
x = 13,923,841,994,651.76/5,479,841.20 - Step 6: Final answer
x = 2,540,920.71
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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.