Finding the Fourth Proportional to 587,087.28, 809,902.26 and 396,162.18
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Solution
The fourth proportional to 587,087.28, 809,902.26 and 396,162.18 is: 546,516.09
Step by Step Solution
- Step 1: Write the proportion equation
587,087.28 : 809,902.26 = 396,162.18 : x - Step 2: Convert to fraction form
587,087.28/809,902.26 = 396,162.18/x - Step 3: Cross multiply
587,087.28x = 809,902.26 × 396,162.18 - Step 4: Simplify right side
587,087.28x = 320,852,644,908.53 - Step 5: Solve for x
x = 320,852,644,908.53/587,087.28 - Step 6: Final answer
x = 546,516.09
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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.