Finding the Fourth Proportional to 919,235.26, 1,378,853.30 and 288,198.28
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Solution
The fourth proportional to 919,235.26, 1,378,853.30 and 288,198.28 is: 432,297.55
Step by Step Solution
- Step 1: Write the proportion equation
919,235.26 : 1,378,853.30 = 288,198.28 : x - Step 2: Convert to fraction form
919,235.26/1,378,853.30 = 288,198.28/x - Step 3: Cross multiply
919,235.26x = 1,378,853.30 × 288,198.28 - Step 4: Simplify right side
919,235.26x = 397,383,149,432.32 - Step 5: Solve for x
x = 397,383,149,432.32/919,235.26 - Step 6: Final answer
x = 432,297.55
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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.