Finding the Fourth Proportional to 415,327.40, 622,991.10 and 273,609.80
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Solution
The fourth proportional to 415,327.40, 622,991.10 and 273,609.80 is: 410,414.70
Step by Step Solution
- Step 1: Write the proportion equation
415,327.40 : 622,991.10 = 273,609.80 : x - Step 2: Convert to fraction form
415,327.40/622,991.10 = 273,609.80/x - Step 3: Cross multiply
415,327.40x = 622,991.10 × 273,609.80 - Step 4: Simplify right side
415,327.40x = 170,456,470,272.78 - Step 5: Solve for x
x = 170,456,470,272.78/415,327.40 - Step 6: Final answer
x = 410,414.70
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1.5x scale
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.