Finding the Fourth Proportional to 1,394,163.20, 2,091,536.40 and 447,629.60
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Solution
The fourth proportional to 1,394,163.20, 2,091,536.40 and 447,629.60 is: 671,538.03
Step by Step Solution
- Step 1: Write the proportion equation
1,394,163.20 : 2,091,536.40 = 447,629.60 : x - Step 2: Convert to fraction form
1,394,163.20/2,091,536.40 = 447,629.60/x - Step 3: Cross multiply
1,394,163.20x = 2,091,536.40 × 447,629.60 - Step 4: Simplify right side
1,394,163.20x = 936,233,602,117.44 - Step 5: Solve for x
x = 936,233,602,117.44/1,394,163.20 - Step 6: Final answer
x = 671,538.03
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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.