Finding the Fourth Proportional to 412,040.96, 618,157.83 and 127,716.62
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Solution
The fourth proportional to 412,040.96, 618,157.83 and 127,716.62 is: 191,604.81
Step by Step Solution
- Step 1: Write the proportion equation
412,040.96 : 618,157.83 = 127,716.62 : x - Step 2: Convert to fraction form
412,040.96/618,157.83 = 127,716.62/x - Step 3: Cross multiply
412,040.96x = 618,157.83 × 127,716.62 - Step 4: Simplify right side
412,040.96x = 78,949,028,674.13 - Step 5: Solve for x
x = 78,949,028,674.13/412,040.96 - Step 6: Final answer
x = 191,604.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.