Finding the Fourth Proportional to 1,135,149.21, 1,702,723.82 and 387,201.69
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Solution
The fourth proportional to 1,135,149.21, 1,702,723.82 and 387,201.69 is: 580,802.54
Step by Step Solution
- Step 1: Write the proportion equation
1,135,149.21 : 1,702,723.82 = 387,201.69 : x - Step 2: Convert to fraction form
1,135,149.21/1,702,723.82 = 387,201.69/x - Step 3: Cross multiply
1,135,149.21x = 1,702,723.82 × 387,201.69 - Step 4: Simplify right side
1,135,149.21x = 659,297,538,771.25 - Step 5: Solve for x
x = 659,297,538,771.25/1,135,149.21 - Step 6: Final answer
x = 580,802.54
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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.