Finding the Fourth Proportional to 547,771.70, 821,657.55 and 252,859.70
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Solution
The fourth proportional to 547,771.70, 821,657.55 and 252,859.70 is: 379,289.55
Step by Step Solution
- Step 1: Write the proportion equation
547,771.70 : 821,657.55 = 252,859.70 : x - Step 2: Convert to fraction form
547,771.70/821,657.55 = 252,859.70/x - Step 3: Cross multiply
547,771.70x = 821,657.55 × 252,859.70 - Step 4: Simplify right side
547,771.70x = 207,764,081,595.74 - Step 5: Solve for x
x = 207,764,081,595.74/547,771.70 - Step 6: Final answer
x = 379,289.55
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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.