Finding the Fourth Proportional to 928,157.97, 1,392,238.07 and 254,245.08
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Solution
The fourth proportional to 928,157.97, 1,392,238.07 and 254,245.08 is: 381,367.93
Step by Step Solution
- Step 1: Write the proportion equation
928,157.97 : 1,392,238.07 = 254,245.08 : x - Step 2: Convert to fraction form
928,157.97/1,392,238.07 = 254,245.08/x - Step 3: Cross multiply
928,157.97x = 1,392,238.07 × 254,245.08 - Step 4: Simplify right side
928,157.97x = 353,969,683,912.57 - Step 5: Solve for x
x = 353,969,683,912.57/928,157.97 - Step 6: Final answer
x = 381,367.93
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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.