Finding the Fourth Proportional to 817,715.38, 1,226,486.79 and 218,737
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Solution
The fourth proportional to 817,715.38, 1,226,486.79 and 218,737 is: 328,082.42
Step by Step Solution
- Step 1: Write the proportion equation
817,715.38 : 1,226,486.79 = 218,737 : x - Step 2: Convert to fraction form
817,715.38/1,226,486.79 = 218,737/x - Step 3: Cross multiply
817,715.38x = 1,226,486.79 × 218,737 - Step 4: Simplify right side
817,715.38x = 268,278,040,984.23 - Step 5: Solve for x
x = 268,278,040,984.23/817,715.38 - Step 6: Final answer
x = 328,082.42
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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.