Finding the Fourth Proportional to 2,587,891.20, 3,882,355.20 and 2,170,060.80
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Solution
The fourth proportional to 2,587,891.20, 3,882,355.20 and 2,170,060.80 is: 3,255,525.90
Step by Step Solution
- Step 1: Write the proportion equation
2,587,891.20 : 3,882,355.20 = 2,170,060.80 : x - Step 2: Convert to fraction form
2,587,891.20/3,882,355.20 = 2,170,060.80/x - Step 3: Cross multiply
2,587,891.20x = 3,882,355.20 × 2,170,060.80 - Step 4: Simplify right side
2,587,891.20x = 8,424,946,831,196.16 - Step 5: Solve for x
x = 8,424,946,831,196.16/2,587,891.20 - Step 6: Final answer
x = 3,255,525.90
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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.