Finding the Fourth Proportional to 1,279,344.75, 1,764,755.67 and 826,635.75
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Solution
The fourth proportional to 1,279,344.75, 1,764,755.67 and 826,635.75 is: 1,140,279.14
Step by Step Solution
- Step 1: Write the proportion equation
1,279,344.75 : 1,764,755.67 = 826,635.75 : x - Step 2: Convert to fraction form
1,279,344.75/1,764,755.67 = 826,635.75/x - Step 3: Cross multiply
1,279,344.75x = 1,764,755.67 × 826,635.75 - Step 4: Simplify right side
1,279,344.75x = 1,458,810,126,837.20 - Step 5: Solve for x
x = 1,458,810,126,837.20/1,279,344.75 - Step 6: Final answer
x = 1,140,279.14
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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.