Finding the Fourth Proportional to 925,108.20, 1,387,006.20 and 419,911.20
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Solution
The fourth proportional to 925,108.20, 1,387,006.20 and 419,911.20 is: 629,568.99
Step by Step Solution
- Step 1: Write the proportion equation
925,108.20 : 1,387,006.20 = 419,911.20 : x - Step 2: Convert to fraction form
925,108.20/1,387,006.20 = 419,911.20/x - Step 3: Cross multiply
925,108.20x = 1,387,006.20 × 419,911.20 - Step 4: Simplify right side
925,108.20x = 582,419,437,849.44 - Step 5: Solve for x
x = 582,419,437,849.44/925,108.20 - Step 6: Final answer
x = 629,568.99
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1.5x scale
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.