Finding the Fourth Proportional to 1,269,945.93, 1,752,861.39 and 786,236.21
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Solution
The fourth proportional to 1,269,945.93, 1,752,861.39 and 786,236.21 is: 1,085,213.99
Step by Step Solution
- Step 1: Write the proportion equation
1,269,945.93 : 1,752,861.39 = 786,236.21 : x - Step 2: Convert to fraction form
1,269,945.93/1,752,861.39 = 786,236.21/x - Step 3: Cross multiply
1,269,945.93x = 1,752,861.39 × 786,236.21 - Step 4: Simplify right side
1,269,945.93x = 1,378,163,087,164.62 - Step 5: Solve for x
x = 1,378,163,087,164.62/1,269,945.93 - Step 6: Final answer
x = 1,085,213.99
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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.