Finding the Fourth Proportional to 870,736.87, 1,306,059.18 and 271,629.37
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Solution
The fourth proportional to 870,736.87, 1,306,059.18 and 271,629.37 is: 407,429.67
Step by Step Solution
- Step 1: Write the proportion equation
870,736.87 : 1,306,059.18 = 271,629.37 : x - Step 2: Convert to fraction form
870,736.87/1,306,059.18 = 271,629.37/x - Step 3: Cross multiply
870,736.87x = 1,306,059.18 × 271,629.37 - Step 4: Simplify right side
870,736.87x = 354,764,032,246.12 - Step 5: Solve for x
x = 354,764,032,246.12/870,736.87 - Step 6: Final answer
x = 407,429.67
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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.