Finding the Fourth Proportional to 486,120.96, 728,131.68 and 474,223.68
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Solution
The fourth proportional to 486,120.96, 728,131.68 and 474,223.68 is: 710,311.45
Step by Step Solution
- Step 1: Write the proportion equation
486,120.96 : 728,131.68 = 474,223.68 : x - Step 2: Convert to fraction form
486,120.96/728,131.68 = 474,223.68/x - Step 3: Cross multiply
486,120.96x = 728,131.68 × 474,223.68 - Step 4: Simplify right side
486,120.96x = 345,297,284,814.18 - Step 5: Solve for x
x = 345,297,284,814.18/486,120.96 - Step 6: Final answer
x = 710,311.45
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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.