Finding the Fourth Proportional to 490,628.36, 677,073.48 and 275,755.88
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Solution
The fourth proportional to 490,628.36, 677,073.48 and 275,755.88 is: 380,546.68
Step by Step Solution
- Step 1: Write the proportion equation
490,628.36 : 677,073.48 = 275,755.88 : x - Step 2: Convert to fraction form
490,628.36/677,073.48 = 275,755.88/x - Step 3: Cross multiply
490,628.36x = 677,073.48 × 275,755.88 - Step 4: Simplify right side
490,628.36x = 186,706,993,302.06 - Step 5: Solve for x
x = 186,706,993,302.06/490,628.36 - Step 6: Final answer
x = 380,546.68
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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.