Finding the Fourth Proportional to 744,729.36, 1,027,695.80 and 405,198.96
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Solution
The fourth proportional to 744,729.36, 1,027,695.80 and 405,198.96 is: 559,157.85
Step by Step Solution
- Step 1: Write the proportion equation
744,729.36 : 1,027,695.80 = 405,198.96 : x - Step 2: Convert to fraction form
744,729.36/1,027,695.80 = 405,198.96/x - Step 3: Cross multiply
744,729.36x = 1,027,695.80 × 405,198.96 - Step 4: Simplify right side
744,729.36x = 416,421,269,356.37 - Step 5: Solve for x
x = 416,421,269,356.37/744,729.36 - Step 6: Final answer
x = 559,157.85
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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.