Finding the Fourth Proportional to 757,821.75, 1,045,794.11 and 418,290.09
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Solution
The fourth proportional to 757,821.75, 1,045,794.11 and 418,290.09 is: 577,240.37
Step by Step Solution
- Step 1: Write the proportion equation
757,821.75 : 1,045,794.11 = 418,290.09 : x - Step 2: Convert to fraction form
757,821.75/1,045,794.11 = 418,290.09/x - Step 3: Cross multiply
757,821.75x = 1,045,794.11 × 418,290.09 - Step 4: Simplify right side
757,821.75x = 437,445,310,301.92 - Step 5: Solve for x
x = 437,445,310,301.92/757,821.75 - Step 6: Final answer
x = 577,240.37
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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.