Finding the Fourth Proportional to 720,131.70, 1,080,197.55 and 246,821.70
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Solution
The fourth proportional to 720,131.70, 1,080,197.55 and 246,821.70 is: 370,232.55
Step by Step Solution
- Step 1: Write the proportion equation
720,131.70 : 1,080,197.55 = 246,821.70 : x - Step 2: Convert to fraction form
720,131.70/1,080,197.55 = 246,821.70/x - Step 3: Cross multiply
720,131.70x = 1,080,197.55 × 246,821.70 - Step 4: Simplify right side
720,131.70x = 266,616,195,626.84 - Step 5: Solve for x
x = 266,616,195,626.84/720,131.70 - Step 6: Final answer
x = 370,232.55
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Similar ratio
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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.