Finding the Fourth Proportional to 3,426,172.20, 4,728,309.12 and 1,956,514.68
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Solution
The fourth proportional to 3,426,172.20, 4,728,309.12 and 1,956,514.68 is: 2,700,099.61
Step by Step Solution
- Step 1: Write the proportion equation
3,426,172.20 : 4,728,309.12 = 1,956,514.68 : x - Step 2: Convert to fraction form
3,426,172.20/4,728,309.12 = 1,956,514.68/x - Step 3: Cross multiply
3,426,172.20x = 4,728,309.12 × 1,956,514.68 - Step 4: Simplify right side
3,426,172.20x = 9,251,006,204,857.88 - Step 5: Solve for x
x = 9,251,006,204,857.88/3,426,172.20 - Step 6: Final answer
x = 2,700,099.61
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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.