Finding the Fourth Proportional to 3,328,855.20, 4,990,366.80 and 2,260,432.80
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Solution
The fourth proportional to 3,328,855.20, 4,990,366.80 and 2,260,432.80 is: 3,388,669.11
Step by Step Solution
- Step 1: Write the proportion equation
3,328,855.20 : 4,990,366.80 = 2,260,432.80 : x - Step 2: Convert to fraction form
3,328,855.20/4,990,366.80 = 2,260,432.80/x - Step 3: Cross multiply
3,328,855.20x = 4,990,366.80 × 2,260,432.80 - Step 4: Simplify right side
3,328,855.20x = 11,280,388,798,751.04 - Step 5: Solve for x
x = 11,280,388,798,751.04/3,328,855.20 - Step 6: Final answer
x = 3,388,669.11
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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.