Finding the Fourth Proportional to 822,961.26, 1,133,163.09 and 720,412.83
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Solution
The fourth proportional to 822,961.26, 1,133,163.09 and 720,412.83 is: 991,960.70
Step by Step Solution
- Step 1: Write the proportion equation
822,961.26 : 1,133,163.09 = 720,412.83 : x - Step 2: Convert to fraction form
822,961.26/1,133,163.09 = 720,412.83/x - Step 3: Cross multiply
822,961.26x = 1,133,163.09 × 720,412.83 - Step 4: Simplify right side
822,961.26x = 816,345,228,518.45 - Step 5: Solve for x
x = 816,345,228,518.45/822,961.26 - Step 6: Final answer
x = 991,960.70
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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.