Finding the Fourth Proportional to 495,651.24, 683,976.42 and 280,786.92
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Solution
The fourth proportional to 495,651.24, 683,976.42 and 280,786.92 is: 387,473.32
Step by Step Solution
- Step 1: Write the proportion equation
495,651.24 : 683,976.42 = 280,786.92 : x - Step 2: Convert to fraction form
495,651.24/683,976.42 = 280,786.92/x - Step 3: Cross multiply
495,651.24x = 683,976.42 × 280,786.92 - Step 4: Simplify right side
495,651.24x = 192,051,632,324.43 - Step 5: Solve for x
x = 192,051,632,324.43/495,651.24 - Step 6: Final answer
x = 387,473.32
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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.