Finding the Fourth Proportional to 871,104.24, 1,306,379.88 and 279,990
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Solution
The fourth proportional to 871,104.24, 1,306,379.88 and 279,990 is: 419,896.13
Step by Step Solution
- Step 1: Write the proportion equation
871,104.24 : 1,306,379.88 = 279,990 : x - Step 2: Convert to fraction form
871,104.24/1,306,379.88 = 279,990/x - Step 3: Cross multiply
871,104.24x = 1,306,379.88 × 279,990 - Step 4: Simplify right side
871,104.24x = 365,773,302,601.20 - Step 5: Solve for x
x = 365,773,302,601.20/871,104.24 - Step 6: Final answer
x = 419,896.13
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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.