Finding the Fourth Proportional to 393,778.94, 590,668.38 and 113,296.19
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Solution
The fourth proportional to 393,778.94, 590,668.38 and 113,296.19 is: 169,944.27
Step by Step Solution
- Step 1: Write the proportion equation
393,778.94 : 590,668.38 = 113,296.19 : x - Step 2: Convert to fraction form
393,778.94/590,668.38 = 113,296.19/x - Step 3: Cross multiply
393,778.94x = 590,668.38 × 113,296.19 - Step 4: Simplify right side
393,778.94x = 66,920,474,054.13 - Step 5: Solve for x
x = 66,920,474,054.13/393,778.94 - Step 6: Final answer
x = 169,944.27
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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.