Finding the Fourth Proportional to 758,942.79, 1,138,414.18 and 285,734.31
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Solution
The fourth proportional to 758,942.79, 1,138,414.18 and 285,734.31 is: 428,601.46
Step by Step Solution
- Step 1: Write the proportion equation
758,942.79 : 1,138,414.18 = 285,734.31 : x - Step 2: Convert to fraction form
758,942.79/1,138,414.18 = 285,734.31/x - Step 3: Cross multiply
758,942.79x = 1,138,414.18 × 285,734.31 - Step 4: Simplify right side
758,942.79x = 325,283,990,216.52 - Step 5: Solve for x
x = 325,283,990,216.52/758,942.79 - Step 6: Final answer
x = 428,601.46
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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.