Finding the Fourth Proportional to 2,589,716.60, 3,882,731.70 and 991,662.20
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Solution
The fourth proportional to 2,589,716.60, 3,882,731.70 and 991,662.20 is: 1,486,787.50
Step by Step Solution
- Step 1: Write the proportion equation
2,589,716.60 : 3,882,731.70 = 991,662.20 : x - Step 2: Convert to fraction form
2,589,716.60/3,882,731.70 = 991,662.20/x - Step 3: Cross multiply
2,589,716.60x = 3,882,731.70 × 991,662.20 - Step 4: Simplify right side
2,589,716.60x = 3,850,358,259,631.74 - Step 5: Solve for x
x = 3,850,358,259,631.74/2,589,716.60 - Step 6: Final answer
x = 1,486,787.50
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1.5x scale
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.