Finding the Fourth Proportional to 519,745.75, 779,618.64 and 125,761.75
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Solution
The fourth proportional to 519,745.75, 779,618.64 and 125,761.75 is: 188,642.63
Step by Step Solution
- Step 1: Write the proportion equation
519,745.75 : 779,618.64 = 125,761.75 : x - Step 2: Convert to fraction form
519,745.75/779,618.64 = 125,761.75/x - Step 3: Cross multiply
519,745.75x = 779,618.64 × 125,761.75 - Step 4: Simplify right side
519,745.75x = 98,046,204,499.02 - Step 5: Solve for x
x = 98,046,204,499.02/519,745.75 - Step 6: Final answer
x = 188,642.63
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Similar ratio
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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.