Finding the Fourth Proportional to 5,378,589.20, 7,422,453.20 and 2,964,141.20
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Solution
The fourth proportional to 5,378,589.20, 7,422,453.20 and 2,964,141.20 is: 4,090,514.91
Step by Step Solution
- Step 1: Write the proportion equation
5,378,589.20 : 7,422,453.20 = 2,964,141.20 : x - Step 2: Convert to fraction form
5,378,589.20/7,422,453.20 = 2,964,141.20/x - Step 3: Cross multiply
5,378,589.20x = 7,422,453.20 × 2,964,141.20 - Step 4: Simplify right side
5,378,589.20x = 22,001,199,305,489.93 - Step 5: Solve for x
x = 22,001,199,305,489.93/5,378,589.20 - Step 6: Final answer
x = 4,090,514.91
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1.5x scale
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.