Finding the Fourth Proportional to 853,072.14, 1,279,476.99 and 284,463.12
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Solution
The fourth proportional to 853,072.14, 1,279,476.99 and 284,463.12 is: 426,650.92
Step by Step Solution
- Step 1: Write the proportion equation
853,072.14 : 1,279,476.99 = 284,463.12 : x - Step 2: Convert to fraction form
853,072.14/1,279,476.99 = 284,463.12/x - Step 3: Cross multiply
853,072.14x = 1,279,476.99 × 284,463.12 - Step 4: Simplify right side
853,072.14x = 363,964,016,543.61 - Step 5: Solve for x
x = 363,964,016,543.61/853,072.14 - Step 6: Final answer
x = 426,650.92
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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.