Finding the Fourth Proportional to 786,729.87, 1,085,859.18 and 500,193.99
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Solution
The fourth proportional to 786,729.87, 1,085,859.18 and 500,193.99 is: 690,377.04
Step by Step Solution
- Step 1: Write the proportion equation
786,729.87 : 1,085,859.18 = 500,193.99 : x - Step 2: Convert to fraction form
786,729.87/1,085,859.18 = 500,193.99/x - Step 3: Cross multiply
786,729.87x = 1,085,859.18 × 500,193.99 - Step 4: Simplify right side
786,729.87x = 543,140,235,822.33 - Step 5: Solve for x
x = 543,140,235,822.33/786,729.87 - Step 6: Final answer
x = 690,377.04
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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.