Finding the Fourth Proportional to 874,121.14, 1,206,213.69 and 534,523.78
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Solution
The fourth proportional to 874,121.14, 1,206,213.69 and 534,523.78 is: 737,597.88
Step by Step Solution
- Step 1: Write the proportion equation
874,121.14 : 1,206,213.69 = 534,523.78 : x - Step 2: Convert to fraction form
874,121.14/1,206,213.69 = 534,523.78/x - Step 3: Cross multiply
874,121.14x = 1,206,213.69 × 534,523.78 - Step 4: Simplify right side
874,121.14x = 644,749,901,066.55 - Step 5: Solve for x
x = 644,749,901,066.55/874,121.14 - Step 6: Final answer
x = 737,597.88
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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.