Finding the Fourth Proportional to 1,294,324.76, 1,786,228.99 and 721,369.03
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Solution
The fourth proportional to 1,294,324.76, 1,786,228.99 and 721,369.03 is: 995,523.16
Step by Step Solution
- Step 1: Write the proportion equation
1,294,324.76 : 1,786,228.99 = 721,369.03 : x - Step 2: Convert to fraction form
1,294,324.76/1,786,228.99 = 721,369.03/x - Step 3: Cross multiply
1,294,324.76x = 1,786,228.99 × 721,369.03 - Step 4: Simplify right side
1,294,324.76x = 1,288,530,273,874.18 - Step 5: Solve for x
x = 1,288,530,273,874.18/1,294,324.76 - Step 6: Final answer
x = 995,523.16
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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.