Finding the Fourth Proportional to 2,160,412.16, 2,981,428.98 and 1,193,604.80
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Solution
The fourth proportional to 2,160,412.16, 2,981,428.98 and 1,193,604.80 is: 1,647,207.88
Step by Step Solution
- Step 1: Write the proportion equation
2,160,412.16 : 2,981,428.98 = 1,193,604.80 : x - Step 2: Convert to fraction form
2,160,412.16/2,981,428.98 = 1,193,604.80/x - Step 3: Cross multiply
2,160,412.16x = 2,981,428.98 × 1,193,604.80 - Step 4: Simplify right side
2,160,412.16x = 3,558,647,941,387.10 - Step 5: Solve for x
x = 3,558,647,941,387.10/2,160,412.16 - Step 6: Final answer
x = 1,647,207.88
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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.