Finding the Fourth Proportional to 486,859.80, 730,289.70 and 276,907.80
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Solution
The fourth proportional to 486,859.80, 730,289.70 and 276,907.80 is: 415,361.70
Step by Step Solution
- Step 1: Write the proportion equation
486,859.80 : 730,289.70 = 276,907.80 : x - Step 2: Convert to fraction form
486,859.80/730,289.70 = 276,907.80/x - Step 3: Cross multiply
486,859.80x = 730,289.70 × 276,907.80 - Step 4: Simplify right side
486,859.80x = 202,222,914,189.66 - Step 5: Solve for x
x = 202,222,914,189.66/486,859.80 - Step 6: Final answer
x = 415,361.70
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1.5x scale
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.