Finding the Fourth Proportional to 858,431.99, 1,288,912 and 480,093.97
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Solution
The fourth proportional to 858,431.99, 1,288,912 and 480,093.97 is: 720,847.88
Step by Step Solution
- Step 1: Write the proportion equation
858,431.99 : 1,288,912 = 480,093.97 : x - Step 2: Convert to fraction form
858,431.99/1,288,912 = 480,093.97/x - Step 3: Cross multiply
858,431.99x = 1,288,912 × 480,093.97 - Step 4: Simplify right side
858,431.99x = 618,798,879,060.64 - Step 5: Solve for x
x = 618,798,879,060.64/858,431.99 - Step 6: Final answer
x = 720,847.88
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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.