Finding the Fourth Proportional to 810,704.87, 1,216,107.44 and 271,009.70
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Solution
The fourth proportional to 810,704.87, 1,216,107.44 and 271,009.70 is: 406,531.32
Step by Step Solution
- Step 1: Write the proportion equation
810,704.87 : 1,216,107.44 = 271,009.70 : x - Step 2: Convert to fraction form
810,704.87/1,216,107.44 = 271,009.70/x - Step 3: Cross multiply
810,704.87x = 1,216,107.44 × 271,009.70 - Step 4: Simplify right side
810,704.87x = 329,576,916,199.96 - Step 5: Solve for x
x = 329,576,916,199.96/810,704.87 - Step 6: Final answer
x = 406,531.32
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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.