Finding the Fourth Proportional to 548,419.20, 822,628.80 and 512,989.80
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Solution
The fourth proportional to 548,419.20, 822,628.80 and 512,989.80 is: 769,484.70
Step by Step Solution
- Step 1: Write the proportion equation
548,419.20 : 822,628.80 = 512,989.80 : x - Step 2: Convert to fraction form
548,419.20/822,628.80 = 512,989.80/x - Step 3: Cross multiply
548,419.20x = 822,628.80 × 512,989.80 - Step 4: Simplify right side
548,419.20x = 422,000,183,586.24 - Step 5: Solve for x
x = 422,000,183,586.24/548,419.20 - Step 6: Final answer
x = 769,484.70
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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.