Finding the Fourth Proportional to 738,640.08, 1,107,960.12 and 177,674.58
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Solution
The fourth proportional to 738,640.08, 1,107,960.12 and 177,674.58 is: 266,511.87
Step by Step Solution
- Step 1: Write the proportion equation
738,640.08 : 1,107,960.12 = 177,674.58 : x - Step 2: Convert to fraction form
738,640.08/1,107,960.12 = 177,674.58/x - Step 3: Cross multiply
738,640.08x = 1,107,960.12 × 177,674.58 - Step 4: Simplify right side
738,640.08x = 196,856,348,977.75 - Step 5: Solve for x
x = 196,856,348,977.75/738,640.08 - Step 6: Final answer
x = 266,511.87
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1.5x scale
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.