Finding the Fourth Proportional to 811,640.76, 1,119,792.25 and 467,469.79
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Solution
The fourth proportional to 811,640.76, 1,119,792.25 and 467,469.79 is: 644,951.65
Step by Step Solution
- Step 1: Write the proportion equation
811,640.76 : 1,119,792.25 = 467,469.79 : x - Step 2: Convert to fraction form
811,640.76/1,119,792.25 = 467,469.79/x - Step 3: Cross multiply
811,640.76x = 1,119,792.25 × 467,469.79 - Step 4: Simplify right side
811,640.76x = 523,469,045,613.78 - Step 5: Solve for x
x = 523,469,045,613.78/811,640.76 - Step 6: Final answer
x = 644,951.65
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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.