Finding the Fourth Proportional to 804,163.80, 1,206,245.70 and 213,187.80
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Solution
The fourth proportional to 804,163.80, 1,206,245.70 and 213,187.80 is: 319,781.70
Step by Step Solution
- Step 1: Write the proportion equation
804,163.80 : 1,206,245.70 = 213,187.80 : x - Step 2: Convert to fraction form
804,163.80/1,206,245.70 = 213,187.80/x - Step 3: Cross multiply
804,163.80x = 1,206,245.70 × 213,187.80 - Step 4: Simplify right side
804,163.80x = 257,156,867,042.46 - Step 5: Solve for x
x = 257,156,867,042.46/804,163.80 - Step 6: Final answer
x = 319,781.70
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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.