Finding the Fourth Proportional to 934,693.97, 1,401,480.42 and 428,621.03
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Solution
The fourth proportional to 934,693.97, 1,401,480.42 and 428,621.03 is: 642,674.50
Step by Step Solution
- Step 1: Write the proportion equation
934,693.97 : 1,401,480.42 = 428,621.03 : x - Step 2: Convert to fraction form
934,693.97/1,401,480.42 = 428,621.03/x - Step 3: Cross multiply
934,693.97x = 1,401,480.42 × 428,621.03 - Step 4: Simplify right side
934,693.97x = 600,703,981,145.23 - Step 5: Solve for x
x = 600,703,981,145.23/934,693.97 - Step 6: Final answer
x = 642,674.50
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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.