Finding the Fourth Proportional to 3,231,728.68, 4,847,715.60 and 1,209,759.76
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Solution
The fourth proportional to 3,231,728.68, 4,847,715.60 and 1,209,759.76 is: 1,814,685.53
Step by Step Solution
- Step 1: Write the proportion equation
3,231,728.68 : 4,847,715.60 = 1,209,759.76 : x - Step 2: Convert to fraction form
3,231,728.68/4,847,715.60 = 1,209,759.76/x - Step 3: Cross multiply
3,231,728.68x = 4,847,715.60 × 1,209,759.76 - Step 4: Simplify right side
3,231,728.68x = 5,864,571,260,804.26 - Step 5: Solve for x
x = 5,864,571,260,804.26/3,231,728.68 - Step 6: Final answer
x = 1,814,685.53
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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.