Finding the Fourth Proportional to 1,786,186.80, 2,679,367.68 and 721,096.08
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Solution
The fourth proportional to 1,786,186.80, 2,679,367.68 and 721,096.08 is: 1,081,679.44
Step by Step Solution
- Step 1: Write the proportion equation
1,786,186.80 : 2,679,367.68 = 721,096.08 : x - Step 2: Convert to fraction form
1,786,186.80/2,679,367.68 = 721,096.08/x - Step 3: Cross multiply
1,786,186.80x = 2,679,367.68 × 721,096.08 - Step 4: Simplify right side
1,786,186.80x = 1,932,081,530,926.69 - Step 5: Solve for x
x = 1,932,081,530,926.69/1,786,186.80 - Step 6: Final answer
x = 1,081,679.44
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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.