Finding the Fourth Proportional to 996,163.20, 1,494,244.80 and 331,315.20
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Solution
The fourth proportional to 996,163.20, 1,494,244.80 and 331,315.20 is: 496,972.80
Step by Step Solution
- Step 1: Write the proportion equation
996,163.20 : 1,494,244.80 = 331,315.20 : x - Step 2: Convert to fraction form
996,163.20/1,494,244.80 = 331,315.20/x - Step 3: Cross multiply
996,163.20x = 1,494,244.80 × 331,315.20 - Step 4: Simplify right side
996,163.20x = 495,066,014,760.96 - Step 5: Solve for x
x = 495,066,014,760.96/996,163.20 - Step 6: Final answer
x = 496,972.80
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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.