Finding the Fourth Proportional to 852,310.09, 1,176,147.97 and 489,478.15
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Solution
The fourth proportional to 852,310.09, 1,176,147.97 and 489,478.15 is: 675,456.90
Step by Step Solution
- Step 1: Write the proportion equation
852,310.09 : 1,176,147.97 = 489,478.15 : x - Step 2: Convert to fraction form
852,310.09/1,176,147.97 = 489,478.15/x - Step 3: Cross multiply
852,310.09x = 1,176,147.97 × 489,478.15 - Step 4: Simplify right side
852,310.09x = 575,698,732,481.86 - Step 5: Solve for x
x = 575,698,732,481.86/852,310.09 - Step 6: Final answer
x = 675,456.90
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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.