Finding the Fourth Proportional to 685,144.14, 1,027,716.21 and 211,819.02
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Solution
The fourth proportional to 685,144.14, 1,027,716.21 and 211,819.02 is: 317,728.53
Step by Step Solution
- Step 1: Write the proportion equation
685,144.14 : 1,027,716.21 = 211,819.02 : x - Step 2: Convert to fraction form
685,144.14/1,027,716.21 = 211,819.02/x - Step 3: Cross multiply
685,144.14x = 1,027,716.21 × 211,819.02 - Step 4: Simplify right side
685,144.14x = 217,689,840,440.31 - Step 5: Solve for x
x = 217,689,840,440.31/685,144.14 - Step 6: Final answer
x = 317,728.53
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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.