Finding the Fourth Proportional to 760,128.40, 1,140,229.36 and 199,163.44
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Solution
The fourth proportional to 760,128.40, 1,140,229.36 and 199,163.44 is: 298,754.79
Step by Step Solution
- Step 1: Write the proportion equation
760,128.40 : 1,140,229.36 = 199,163.44 : x - Step 2: Convert to fraction form
760,128.40/1,140,229.36 = 199,163.44/x - Step 3: Cross multiply
760,128.40x = 1,140,229.36 × 199,163.44 - Step 4: Simplify right side
760,128.40x = 227,092,001,726.60 - Step 5: Solve for x
x = 227,092,001,726.60/760,128.40 - Step 6: Final answer
x = 298,754.79
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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.