Finding the Fourth Proportional to 727,612.40, 1,004,135.36 and 405,322.44
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Solution
The fourth proportional to 727,612.40, 1,004,135.36 and 405,322.44 is: 559,361.82
Step by Step Solution
- Step 1: Write the proportion equation
727,612.40 : 1,004,135.36 = 405,322.44 : x - Step 2: Convert to fraction form
727,612.40/1,004,135.36 = 405,322.44/x - Step 3: Cross multiply
727,612.40x = 1,004,135.36 × 405,322.44 - Step 4: Simplify right side
727,612.40x = 406,998,594,205.48 - Step 5: Solve for x
x = 406,998,594,205.48/727,612.40 - Step 6: Final answer
x = 559,361.82
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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.