Finding the Fourth Proportional to 860,246.99, 1,290,287.11 and 261,213.42
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Solution
The fourth proportional to 860,246.99, 1,290,287.11 and 261,213.42 is: 391,794.81
Step by Step Solution
- Step 1: Write the proportion equation
860,246.99 : 1,290,287.11 = 261,213.42 : x - Step 2: Convert to fraction form
860,246.99/1,290,287.11 = 261,213.42/x - Step 3: Cross multiply
860,246.99x = 1,290,287.11 × 261,213.42 - Step 4: Simplify right side
860,246.99x = 337,040,308,785.02 - Step 5: Solve for x
x = 337,040,308,785.02/860,246.99 - Step 6: Final answer
x = 391,794.81
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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.