Finding the Fourth Proportional to 664,622.30, 996,933.45 and 486,163.10
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Solution
The fourth proportional to 664,622.30, 996,933.45 and 486,163.10 is: 729,244.65
Step by Step Solution
- Step 1: Write the proportion equation
664,622.30 : 996,933.45 = 486,163.10 : x - Step 2: Convert to fraction form
664,622.30/996,933.45 = 486,163.10/x - Step 3: Cross multiply
664,622.30x = 996,933.45 × 486,163.10 - Step 4: Simplify right side
664,622.30x = 484,672,256,545.70 - Step 5: Solve for x
x = 484,672,256,545.70/664,622.30 - Step 6: Final answer
x = 729,244.65
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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.