Finding the Third Proportional to 311,977.41 and 638,739.84
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Solution
The third proportional to 311,977.41 and 638,739.84 is: 1,307,750.43
Step by Step Solution
- Step 1: Write the proportion equation
311,977.41 : 638,739.84 = 638,739.84 : x - Step 2: Convert to fraction form
311,977.41/638,739.84 = 638,739.84/x - Step 3: Cross multiply
311,977.41x = 638,739.84 × 638,739.84 - Step 4: Simplify right side
311,977.41x = 407,988,587,993.77 - Step 5: Solve for x
x = 407,988,587,993.77/311,977.41 - Step 6: Final answer
x = 1,307,750.43
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Why These Related Problems?
These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.