Finding the Fourth Proportional to 1,861,272.92, 2,568,255.50 and 1,163,472.09
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Solution
The fourth proportional to 1,861,272.92, 2,568,255.50 and 1,163,472.09 is: 1,605,403.25
Step by Step Solution
- Step 1: Write the proportion equation
1,861,272.92 : 2,568,255.50 = 1,163,472.09 : x - Step 2: Convert to fraction form
1,861,272.92/2,568,255.50 = 1,163,472.09/x - Step 3: Cross multiply
1,861,272.92x = 2,568,255.50 × 1,163,472.09 - Step 4: Simplify right side
1,861,272.92x = 2,988,093,588,421.64 - Step 5: Solve for x
x = 2,988,093,588,421.64/1,861,272.92 - Step 6: Final answer
x = 1,605,403.25
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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.