Finding the Fourth Proportional to 755,609.11, 1,042,735.75 and 416,074.75
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Solution
The fourth proportional to 755,609.11, 1,042,735.75 and 416,074.75 is: 574,180.50
Step by Step Solution
- Step 1: Write the proportion equation
755,609.11 : 1,042,735.75 = 416,074.75 : x - Step 2: Convert to fraction form
755,609.11/1,042,735.75 = 416,074.75/x - Step 3: Cross multiply
755,609.11x = 1,042,735.75 × 416,074.75 - Step 4: Simplify right side
755,609.11x = 433,856,016,497.31 - Step 5: Solve for x
x = 433,856,016,497.31/755,609.11 - Step 6: Final answer
x = 574,180.50
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1.5x scale
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.