Finding the Fourth Proportional to 2,889,874.88, 3,986,515.32 and 1,786,953.68
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Solution
The fourth proportional to 2,889,874.88, 3,986,515.32 and 1,786,953.68 is: 2,465,061.12
Step by Step Solution
- Step 1: Write the proportion equation
2,889,874.88 : 3,986,515.32 = 1,786,953.68 : x - Step 2: Convert to fraction form
2,889,874.88/3,986,515.32 = 1,786,953.68/x - Step 3: Cross multiply
2,889,874.88x = 3,986,515.32 × 1,786,953.68 - Step 4: Simplify right side
2,889,874.88x = 7,123,718,221,450.38 - Step 5: Solve for x
x = 7,123,718,221,450.38/2,889,874.88 - Step 6: Final answer
x = 2,465,061.12
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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.