Finding the Fourth Proportional to 811,229.29, 1,215,985.86 and 305,571.49
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Solution
The fourth proportional to 811,229.29, 1,215,985.86 and 305,571.49 is: 458,034.02
Step by Step Solution
- Step 1: Write the proportion equation
811,229.29 : 1,215,985.86 = 305,571.49 : x - Step 2: Convert to fraction form
811,229.29/1,215,985.86 = 305,571.49/x - Step 3: Cross multiply
811,229.29x = 1,215,985.86 × 305,571.49 - Step 4: Simplify right side
811,229.29x = 371,570,608,019.17 - Step 5: Solve for x
x = 371,570,608,019.17/811,229.29 - Step 6: Final answer
x = 458,034.02
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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.