Finding the Fourth Proportional to 2,081,676.48, 3,121,845.86 and 661,400.62
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Solution
The fourth proportional to 2,081,676.48, 3,121,845.86 and 661,400.62 is: 991,888.42
Step by Step Solution
- Step 1: Write the proportion equation
2,081,676.48 : 3,121,845.86 = 661,400.62 : x - Step 2: Convert to fraction form
2,081,676.48/3,121,845.86 = 661,400.62/x - Step 3: Cross multiply
2,081,676.48x = 3,121,845.86 × 661,400.62 - Step 4: Simplify right side
2,081,676.48x = 2,064,790,787,348.43 - Step 5: Solve for x
x = 2,064,790,787,348.43/2,081,676.48 - Step 6: Final answer
x = 991,888.42
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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.