Finding the Fourth Proportional to 2,192,198.18, 3,025,232.42 and 1,286,780.18
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Solution
The fourth proportional to 2,192,198.18, 3,025,232.42 and 1,286,780.18 is: 1,775,756.02
Step by Step Solution
- Step 1: Write the proportion equation
2,192,198.18 : 3,025,232.42 = 1,286,780.18 : x - Step 2: Convert to fraction form
2,192,198.18/3,025,232.42 = 1,286,780.18/x - Step 3: Cross multiply
2,192,198.18x = 3,025,232.42 × 1,286,780.18 - Step 4: Simplify right side
2,192,198.18x = 3,892,809,117,949.44 - Step 5: Solve for x
x = 3,892,809,117,949.44/2,192,198.18 - Step 6: Final answer
x = 1,775,756.02
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.