Finding the Fourth Proportional to 852,239.76, 1,278,309.49 and 319,716.19
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Solution
The fourth proportional to 852,239.76, 1,278,309.49 and 319,716.19 is: 479,555.47
Step by Step Solution
- Step 1: Write the proportion equation
852,239.76 : 1,278,309.49 = 319,716.19 : x - Step 2: Convert to fraction form
852,239.76/1,278,309.49 = 319,716.19/x - Step 3: Cross multiply
852,239.76x = 1,278,309.49 × 319,716.19 - Step 4: Simplify right side
852,239.76x = 408,696,239,783.64 - Step 5: Solve for x
x = 408,696,239,783.64/852,239.76 - Step 6: Final answer
x = 479,555.47
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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.