Finding the Fourth Proportional to 1,998,290.54, 2,757,638.99 and 1,080,517.49
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Solution
The fourth proportional to 1,998,290.54, 2,757,638.99 and 1,080,517.49 is: 1,491,113.07
Step by Step Solution
- Step 1: Write the proportion equation
1,998,290.54 : 2,757,638.99 = 1,080,517.49 : x - Step 2: Convert to fraction form
1,998,290.54/2,757,638.99 = 1,080,517.49/x - Step 3: Cross multiply
1,998,290.54x = 2,757,638.99 × 1,080,517.49 - Step 4: Simplify right side
1,998,290.54x = 2,979,677,140,610.15 - Step 5: Solve for x
x = 2,979,677,140,610.15/1,998,290.54 - Step 6: Final answer
x = 1,491,113.07
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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.