Finding the Fourth Proportional to 1,131,408.26, 1,561,332.42 and 615,162.15
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Solution
The fourth proportional to 1,131,408.26, 1,561,332.42 and 615,162.15 is: 848,917.80
Step by Step Solution
- Step 1: Write the proportion equation
1,131,408.26 : 1,561,332.42 = 615,162.15 : x - Step 2: Convert to fraction form
1,131,408.26/1,561,332.42 = 615,162.15/x - Step 3: Cross multiply
1,131,408.26x = 1,561,332.42 × 615,162.15 - Step 4: Simplify right side
1,131,408.26x = 960,472,608,351.90 - Step 5: Solve for x
x = 960,472,608,351.90/1,131,408.26 - Step 6: Final answer
x = 848,917.80
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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.