Finding the Fourth Proportional to 1,394,163.40, 2,091,245.10 and 447,629.80
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Solution
The fourth proportional to 1,394,163.40, 2,091,245.10 and 447,629.80 is: 671,444.70
Step by Step Solution
- Step 1: Write the proportion equation
1,394,163.40 : 2,091,245.10 = 447,629.80 : x - Step 2: Convert to fraction form
1,394,163.40/2,091,245.10 = 447,629.80/x - Step 3: Cross multiply
1,394,163.40x = 2,091,245.10 × 447,629.80 - Step 4: Simplify right side
1,394,163.40x = 936,103,625,863.98 - Step 5: Solve for x
x = 936,103,625,863.98/1,394,163.40 - Step 6: Final answer
x = 671,444.70
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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.