Finding the Fourth Proportional to 1,998,291.92, 2,757,640.88 and 1,080,518.85
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Solution
The fourth proportional to 1,998,291.92, 2,757,640.88 and 1,080,518.85 is: 1,491,114.95
Step by Step Solution
- Step 1: Write the proportion equation
1,998,291.92 : 2,757,640.88 = 1,080,518.85 : x - Step 2: Convert to fraction form
1,998,291.92/2,757,640.88 = 1,080,518.85/x - Step 3: Cross multiply
1,998,291.92x = 2,757,640.88 × 1,080,518.85 - Step 4: Simplify right side
1,998,291.92x = 2,979,682,946,967.99 - Step 5: Solve for x
x = 2,979,682,946,967.99/1,998,291.92 - Step 6: Final answer
x = 1,491,114.95
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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.