Finding the Fourth Proportional to 741,721.36, 1,112,213.90 and 236,216.42
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Solution
The fourth proportional to 741,721.36, 1,112,213.90 and 236,216.42 is: 354,207.39
Step by Step Solution
- Step 1: Write the proportion equation
741,721.36 : 1,112,213.90 = 236,216.42 : x - Step 2: Convert to fraction form
741,721.36/1,112,213.90 = 236,216.42/x - Step 3: Cross multiply
741,721.36x = 1,112,213.90 × 236,216.42 - Step 4: Simplify right side
741,721.36x = 262,723,185,732.24 - Step 5: Solve for x
x = 262,723,185,732.24/741,721.36 - Step 6: Final answer
x = 354,207.39
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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.