Finding the Fourth Proportional to 514,138.20, 770,861.70 and 274,291.80
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Solution
The fourth proportional to 514,138.20, 770,861.70 and 274,291.80 is: 411,253.32
Step by Step Solution
- Step 1: Write the proportion equation
514,138.20 : 770,861.70 = 274,291.80 : x - Step 2: Convert to fraction form
514,138.20/770,861.70 = 274,291.80/x - Step 3: Cross multiply
514,138.20x = 770,861.70 × 274,291.80 - Step 4: Simplify right side
514,138.20x = 211,441,043,244.06 - Step 5: Solve for x
x = 211,441,043,244.06/514,138.20 - Step 6: Final answer
x = 411,253.32
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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.