Finding the Fourth Proportional to 2,191,687.68, 3,024,578.56 and 1,286,922.24
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Solution
The fourth proportional to 2,191,687.68, 3,024,578.56 and 1,286,922.24 is: 1,775,981.79
Step by Step Solution
- Step 1: Write the proportion equation
2,191,687.68 : 3,024,578.56 = 1,286,922.24 : x - Step 2: Convert to fraction form
2,191,687.68/3,024,578.56 = 1,286,922.24/x - Step 3: Cross multiply
2,191,687.68x = 3,024,578.56 × 1,286,922.24 - Step 4: Simplify right side
2,191,687.68x = 3,892,397,415,491.17 - Step 5: Solve for x
x = 3,892,397,415,491.17/2,191,687.68 - Step 6: Final answer
x = 1,775,981.79
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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.