Finding the Fourth Proportional to 2,389,912.70, 3,298,037.92 and 1,302,193.19
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Solution
The fourth proportional to 2,389,912.70, 3,298,037.92 and 1,302,193.19 is: 1,797,003.94
Step by Step Solution
- Step 1: Write the proportion equation
2,389,912.70 : 3,298,037.92 = 1,302,193.19 : x - Step 2: Convert to fraction form
2,389,912.70/3,298,037.92 = 1,302,193.19/x - Step 3: Cross multiply
2,389,912.70x = 3,298,037.92 × 1,302,193.19 - Step 4: Simplify right side
2,389,912.70x = 4,294,682,524,775.38 - Step 5: Solve for x
x = 4,294,682,524,775.38/2,389,912.70 - Step 6: Final answer
x = 1,797,003.94
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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.