Finding the Fourth Proportional to 765,821.44, 1,148,732.32 and 344,605.28
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Solution
The fourth proportional to 765,821.44, 1,148,732.32 and 344,605.28 is: 516,907.99
Step by Step Solution
- Step 1: Write the proportion equation
765,821.44 : 1,148,732.32 = 344,605.28 : x - Step 2: Convert to fraction form
765,821.44/1,148,732.32 = 344,605.28/x - Step 3: Cross multiply
765,821.44x = 1,148,732.32 × 344,605.28 - Step 4: Simplify right side
765,821.44x = 395,859,222,778.65 - Step 5: Solve for x
x = 395,859,222,778.65/765,821.44 - Step 6: Final answer
x = 516,907.99
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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.