Finding the Fourth Proportional to 494,593.80, 739,922.40 and 428,765.10
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Solution
The fourth proportional to 494,593.80, 739,922.40 and 428,765.10 is: 641,441.32
Step by Step Solution
- Step 1: Write the proportion equation
494,593.80 : 739,922.40 = 428,765.10 : x - Step 2: Convert to fraction form
494,593.80/739,922.40 = 428,765.10/x - Step 3: Cross multiply
494,593.80x = 739,922.40 × 428,765.10 - Step 4: Simplify right side
494,593.80x = 317,252,901,828.24 - Step 5: Solve for x
x = 317,252,901,828.24/494,593.80 - Step 6: Final answer
x = 641,441.32
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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.