Finding the Fourth Proportional to 471,128.20, 706,424.49 and 321,549.75
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Solution
The fourth proportional to 471,128.20, 706,424.49 and 321,549.75 is: 482,141.84
Step by Step Solution
- Step 1: Write the proportion equation
471,128.20 : 706,424.49 = 321,549.75 : x - Step 2: Convert to fraction form
471,128.20/706,424.49 = 321,549.75/x - Step 3: Cross multiply
471,128.20x = 706,424.49 × 321,549.75 - Step 4: Simplify right side
471,128.20x = 227,150,618,153.38 - Step 5: Solve for x
x = 227,150,618,153.38/471,128.20 - Step 6: Final answer
x = 482,141.84
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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.