Finding the Fourth Proportional to 891,163.80, 1,336,745.70 and 681,211.80
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Solution
The fourth proportional to 891,163.80, 1,336,745.70 and 681,211.80 is: 1,021,817.70
Step by Step Solution
- Step 1: Write the proportion equation
891,163.80 : 1,336,745.70 = 681,211.80 : x - Step 2: Convert to fraction form
891,163.80/1,336,745.70 = 681,211.80/x - Step 3: Cross multiply
891,163.80x = 1,336,745.70 × 681,211.80 - Step 4: Simplify right side
891,163.80x = 910,606,944,439.26 - Step 5: Solve for x
x = 910,606,944,439.26/891,163.80 - Step 6: Final answer
x = 1,021,817.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.