Finding the Fourth Proportional to 548,939.80, 823,409.70 and 371,531.80
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Solution
The fourth proportional to 548,939.80, 823,409.70 and 371,531.80 is: 557,297.70
Step by Step Solution
- Step 1: Write the proportion equation
548,939.80 : 823,409.70 = 371,531.80 : x - Step 2: Convert to fraction form
548,939.80/823,409.70 = 371,531.80/x - Step 3: Cross multiply
548,939.80x = 823,409.70 × 371,531.80 - Step 4: Simplify right side
548,939.80x = 305,922,887,978.46 - Step 5: Solve for x
x = 305,922,887,978.46/548,939.80 - Step 6: Final answer
x = 557,297.70
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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.