Finding the Fourth Proportional to 486,105.12, 670,965.87 and 282,201.84
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Solution
The fourth proportional to 486,105.12, 670,965.87 and 282,201.84 is: 389,520.28
Step by Step Solution
- Step 1: Write the proportion equation
486,105.12 : 670,965.87 = 282,201.84 : x - Step 2: Convert to fraction form
486,105.12/670,965.87 = 282,201.84/x - Step 3: Cross multiply
486,105.12x = 670,965.87 × 282,201.84 - Step 4: Simplify right side
486,105.12x = 189,347,803,091.20 - Step 5: Solve for x
x = 189,347,803,091.20/486,105.12 - Step 6: Final answer
x = 389,520.28
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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.