Finding the Fourth Proportional to 700,879.70, 967,213.84 and 378,589.81
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Solution
The fourth proportional to 700,879.70, 967,213.84 and 378,589.81 is: 522,453.86
Step by Step Solution
- Step 1: Write the proportion equation
700,879.70 : 967,213.84 = 378,589.81 : x - Step 2: Convert to fraction form
700,879.70/967,213.84 = 378,589.81/x - Step 3: Cross multiply
700,879.70x = 967,213.84 × 378,589.81 - Step 4: Simplify right side
700,879.70x = 366,177,303,914.97 - Step 5: Solve for x
x = 366,177,303,914.97/700,879.70 - Step 6: Final answer
x = 522,453.86
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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.