Finding the Fourth Proportional to 711,163.76, 981,466.44 and 405,333.68
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Solution
The fourth proportional to 711,163.76, 981,466.44 and 405,333.68 is: 559,394.93
Step by Step Solution
- Step 1: Write the proportion equation
711,163.76 : 981,466.44 = 405,333.68 : x - Step 2: Convert to fraction form
711,163.76/981,466.44 = 405,333.68/x - Step 3: Cross multiply
711,163.76x = 981,466.44 × 405,333.68 - Step 4: Simplify right side
711,163.76x = 397,821,403,921.70 - Step 5: Solve for x
x = 397,821,403,921.70/711,163.76 - Step 6: Final answer
x = 559,394.93
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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.