Finding the Fourth Proportional to 3,173,387.44, 4,378,193.22 and 2,028,128.44
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Solution
The fourth proportional to 3,173,387.44, 4,378,193.22 and 2,028,128.44 is: 2,798,126.09
Step by Step Solution
- Step 1: Write the proportion equation
3,173,387.44 : 4,378,193.22 = 2,028,128.44 : x - Step 2: Convert to fraction form
3,173,387.44/4,378,193.22 = 2,028,128.44/x - Step 3: Cross multiply
3,173,387.44x = 4,378,193.22 × 2,028,128.44 - Step 4: Simplify right side
3,173,387.44x = 8,879,538,185,297.18 - Step 5: Solve for x
x = 8,879,538,185,297.18/3,173,387.44 - Step 6: Final answer
x = 2,798,126.09
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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.