Finding the Fourth Proportional to 1,204,647.38, 1,662,465.53 and 721,118.99
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Solution
The fourth proportional to 1,204,647.38, 1,662,465.53 and 721,118.99 is: 995,175.42
Step by Step Solution
- Step 1: Write the proportion equation
1,204,647.38 : 1,662,465.53 = 721,118.99 : x - Step 2: Convert to fraction form
1,204,647.38/1,662,465.53 = 721,118.99/x - Step 3: Cross multiply
1,204,647.38x = 1,662,465.53 × 721,118.99 - Step 4: Simplify right side
1,204,647.38x = 1,198,835,463,903.41 - Step 5: Solve for x
x = 1,198,835,463,903.41/1,204,647.38 - Step 6: Final answer
x = 995,175.42
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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.