Finding the Fourth Proportional to 851,059.80, 1,276,589.70 and 768,115.80
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Solution
The fourth proportional to 851,059.80, 1,276,589.70 and 768,115.80 is: 1,152,173.70
Step by Step Solution
- Step 1: Write the proportion equation
851,059.80 : 1,276,589.70 = 768,115.80 : x - Step 2: Convert to fraction form
851,059.80/1,276,589.70 = 768,115.80/x - Step 3: Cross multiply
851,059.80x = 1,276,589.70 × 768,115.80 - Step 4: Simplify right side
851,059.80x = 980,568,718,687.26 - Step 5: Solve for x
x = 980,568,718,687.26/851,059.80 - Step 6: Final answer
x = 1,152,173.70
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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.