Finding the Fourth Proportional to 515,697.14, 711,752.97 and 324,770.42
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Solution
The fourth proportional to 515,697.14, 711,752.97 and 324,770.42 is: 448,240.44
Step by Step Solution
- Step 1: Write the proportion equation
515,697.14 : 711,752.97 = 324,770.42 : x - Step 2: Convert to fraction form
515,697.14/711,752.97 = 324,770.42/x - Step 3: Cross multiply
515,697.14x = 711,752.97 × 324,770.42 - Step 4: Simplify right side
515,697.14x = 231,156,311,003.15 - Step 5: Solve for x
x = 231,156,311,003.15/515,697.14 - Step 6: Final answer
x = 448,240.44
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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.