Finding the Fourth Proportional to 680,601.87, 1,021,533.67 and 343,879.18
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Solution
The fourth proportional to 680,601.87, 1,021,533.67 and 343,879.18 is: 516,137.53
Step by Step Solution
- Step 1: Write the proportion equation
680,601.87 : 1,021,533.67 = 343,879.18 : x - Step 2: Convert to fraction form
680,601.87/1,021,533.67 = 343,879.18/x - Step 3: Cross multiply
680,601.87x = 1,021,533.67 × 343,879.18 - Step 4: Simplify right side
680,601.87x = 351,284,166,324.23 - Step 5: Solve for x
x = 351,284,166,324.23/680,601.87 - Step 6: Final answer
x = 516,137.53
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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.