Finding the Fourth Proportional to 919,235.52, 1,378,853.68 and 288,198.54
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Solution
The fourth proportional to 919,235.52, 1,378,853.68 and 288,198.54 is: 432,297.94
Step by Step Solution
- Step 1: Write the proportion equation
919,235.52 : 1,378,853.68 = 288,198.54 : x - Step 2: Convert to fraction form
919,235.52/1,378,853.68 = 288,198.54/x - Step 3: Cross multiply
919,235.52x = 1,378,853.68 × 288,198.54 - Step 4: Simplify right side
919,235.52x = 397,383,617,449.63 - Step 5: Solve for x
x = 397,383,617,449.63/919,235.52 - Step 6: Final answer
x = 432,297.94
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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.