Finding the Fourth Proportional to 548,163.38, 756,471.09 and 306,459.38
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Solution
The fourth proportional to 548,163.38, 756,471.09 and 306,459.38 is: 422,917.09
Step by Step Solution
- Step 1: Write the proportion equation
548,163.38 : 756,471.09 = 306,459.38 : x - Step 2: Convert to fraction form
548,163.38/756,471.09 = 306,459.38/x - Step 3: Cross multiply
548,163.38x = 756,471.09 × 306,459.38 - Step 4: Simplify right side
548,163.38x = 231,827,661,229.32 - Step 5: Solve for x
x = 231,827,661,229.32/548,163.38 - Step 6: Final answer
x = 422,917.09
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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.