Finding the Fourth Proportional to 2,107,159.70, 3,160,418.79 and 687,213.50
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Solution
The fourth proportional to 2,107,159.70, 3,160,418.79 and 687,213.50 is: 1,030,715.64
Step by Step Solution
- Step 1: Write the proportion equation
2,107,159.70 : 3,160,418.79 = 687,213.50 : x - Step 2: Convert to fraction form
2,107,159.70/3,160,418.79 = 687,213.50/x - Step 3: Cross multiply
2,107,159.70x = 3,160,418.79 × 687,213.50 - Step 4: Simplify right side
2,107,159.70x = 2,171,882,458,141.67 - Step 5: Solve for x
x = 2,171,882,458,141.67/2,107,159.70 - Step 6: Final answer
x = 1,030,715.64
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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.