Finding the Fourth Proportional to 1,998,385.09, 2,757,603.81 and 1,182,445.80
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Solution
The fourth proportional to 1,998,385.09, 2,757,603.81 and 1,182,445.80 is: 1,631,676.03
Step by Step Solution
- Step 1: Write the proportion equation
1,998,385.09 : 2,757,603.81 = 1,182,445.80 : x - Step 2: Convert to fraction form
1,998,385.09/2,757,603.81 = 1,182,445.80/x - Step 3: Cross multiply
1,998,385.09x = 2,757,603.81 × 1,182,445.80 - Step 4: Simplify right side
1,998,385.09x = 3,260,717,043,198.50 - Step 5: Solve for x
x = 3,260,717,043,198.50/1,998,385.09 - Step 6: Final answer
x = 1,631,676.03
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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.