Finding the Fourth Proportional to 642,251.63, 886,269.16 and 351,805.14
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Solution
The fourth proportional to 642,251.63, 886,269.16 and 351,805.14 is: 485,470.23
Step by Step Solution
- Step 1: Write the proportion equation
642,251.63 : 886,269.16 = 351,805.14 : x - Step 2: Convert to fraction form
642,251.63/886,269.16 = 351,805.14/x - Step 3: Cross multiply
642,251.63x = 886,269.16 × 351,805.14 - Step 4: Simplify right side
642,251.63x = 311,794,046,351.24 - Step 5: Solve for x
x = 311,794,046,351.24/642,251.63 - Step 6: Final answer
x = 485,470.23
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.