Finding the Fourth Proportional to 1,682,939.57, 2,524,409.34 and 420,767.19
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Solution
The fourth proportional to 1,682,939.57, 2,524,409.34 and 420,767.19 is: 631,150.78
Step by Step Solution
- Step 1: Write the proportion equation
1,682,939.57 : 2,524,409.34 = 420,767.19 : x - Step 2: Convert to fraction form
1,682,939.57/2,524,409.34 = 420,767.19/x - Step 3: Cross multiply
1,682,939.57x = 2,524,409.34 × 420,767.19 - Step 4: Simplify right side
1,682,939.57x = 1,062,188,624,401.55 - Step 5: Solve for x
x = 1,062,188,624,401.55/1,682,939.57 - Step 6: Final answer
x = 631,150.78
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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.