Finding the Fourth Proportional to 490,912.13, 677,454.50 and 276,047.62
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Solution
The fourth proportional to 490,912.13, 677,454.50 and 276,047.62 is: 380,943.33
Step by Step Solution
- Step 1: Write the proportion equation
490,912.13 : 677,454.50 = 276,047.62 : x - Step 2: Convert to fraction form
490,912.13/677,454.50 = 276,047.62/x - Step 3: Cross multiply
490,912.13x = 677,454.50 × 276,047.62 - Step 4: Simplify right side
490,912.13x = 187,009,701,379.77 - Step 5: Solve for x
x = 187,009,701,379.77/490,912.13 - Step 6: Final answer
x = 380,943.33
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1.5x scale
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.