Finding the Fourth Proportional to 412,469.20, 618,703.80 and 202,517.20
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Solution
The fourth proportional to 412,469.20, 618,703.80 and 202,517.20 is: 303,775.80
Step by Step Solution
- Step 1: Write the proportion equation
412,469.20 : 618,703.80 = 202,517.20 : x - Step 2: Convert to fraction form
412,469.20/618,703.80 = 202,517.20/x - Step 3: Cross multiply
412,469.20x = 618,703.80 × 202,517.20 - Step 4: Simplify right side
412,469.20x = 125,298,161,205.36 - Step 5: Solve for x
x = 125,298,161,205.36/412,469.20 - Step 6: Final answer
x = 303,775.80
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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.