Finding the Fourth Proportional to 460,811.70, 691,217.55 and 382,079.70
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Solution
The fourth proportional to 460,811.70, 691,217.55 and 382,079.70 is: 573,119.55
Step by Step Solution
- Step 1: Write the proportion equation
460,811.70 : 691,217.55 = 382,079.70 : x - Step 2: Convert to fraction form
460,811.70/691,217.55 = 382,079.70/x - Step 3: Cross multiply
460,811.70x = 691,217.55 × 382,079.70 - Step 4: Simplify right side
460,811.70x = 264,100,194,138.74 - Step 5: Solve for x
x = 264,100,194,138.74/460,811.70 - Step 6: Final answer
x = 573,119.55
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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.