Finding the Fourth Proportional to 764,735.57, 1,146,857.79 and 252,285.53
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Solution
The fourth proportional to 764,735.57, 1,146,857.79 and 252,285.53 is: 378,347.28
Step by Step Solution
- Step 1: Write the proportion equation
764,735.57 : 1,146,857.79 = 252,285.53 : x - Step 2: Convert to fraction form
764,735.57/1,146,857.79 = 252,285.53/x - Step 3: Cross multiply
764,735.57x = 1,146,857.79 × 252,285.53 - Step 4: Simplify right side
764,735.57x = 289,335,625,384.78 - Step 5: Solve for x
x = 289,335,625,384.78/764,735.57 - Step 6: Final answer
x = 378,347.28
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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.