Finding the Fourth Proportional to 3,478,414.80, 5,218,529.40 and 1,348,568.40
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Solution
The fourth proportional to 3,478,414.80, 5,218,529.40 and 1,348,568.40 is: 2,023,204.32
Step by Step Solution
- Step 1: Write the proportion equation
3,478,414.80 : 5,218,529.40 = 1,348,568.40 : x - Step 2: Convert to fraction form
3,478,414.80/5,218,529.40 = 1,348,568.40/x - Step 3: Cross multiply
3,478,414.80x = 5,218,529.40 × 1,348,568.40 - Step 4: Simplify right side
3,478,414.80x = 7,037,543,843,310.96 - Step 5: Solve for x
x = 7,037,543,843,310.96/3,478,414.80 - Step 6: Final answer
x = 2,023,204.32
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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.