Finding the Fourth Proportional to 2,160,736.80, 2,981,876.96 and 1,193,929.68
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Solution
The fourth proportional to 2,160,736.80, 2,981,876.96 and 1,193,929.68 is: 1,647,656.21
Step by Step Solution
- Step 1: Write the proportion equation
2,160,736.80 : 2,981,876.96 = 1,193,929.68 : x - Step 2: Convert to fraction form
2,160,736.80/2,981,876.96 = 1,193,929.68/x - Step 3: Cross multiply
2,160,736.80x = 2,981,876.96 × 1,193,929.68 - Step 4: Simplify right side
2,160,736.80x = 3,560,151,404,652.17 - Step 5: Solve for x
x = 3,560,151,404,652.17/2,160,736.80 - Step 6: Final answer
x = 1,647,656.21
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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.