Finding the Fourth Proportional to 522,057.20, 781,530.60 and 311,586.80
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Solution
The fourth proportional to 522,057.20, 781,530.60 and 311,586.80 is: 466,451.99
Step by Step Solution
- Step 1: Write the proportion equation
522,057.20 : 781,530.60 = 311,586.80 : x - Step 2: Convert to fraction form
522,057.20/781,530.60 = 311,586.80/x - Step 3: Cross multiply
522,057.20x = 781,530.60 × 311,586.80 - Step 4: Simplify right side
522,057.20x = 243,514,618,756.08 - Step 5: Solve for x
x = 243,514,618,756.08/522,057.20 - Step 6: Final answer
x = 466,451.99
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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.