Finding the Third Proportional to 311,425.38 and 487,888.95
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Solution
The third proportional to 311,425.38 and 487,888.95 is: 764,342.39
Step by Step Solution
- Step 1: Write the proportion equation
311,425.38 : 487,888.95 = 487,888.95 : x - Step 2: Convert to fraction form
311,425.38/487,888.95 = 487,888.95/x - Step 3: Cross multiply
311,425.38x = 487,888.95 × 487,888.95 - Step 4: Simplify right side
311,425.38x = 238,035,622,958.14 - Step 5: Solve for x
x = 238,035,622,958.14/311,425.38 - Step 6: Final answer
x = 764,342.39
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Why These Related Problems?
These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.