Finding the Fourth Proportional to 764,247.87, 1,146,382.80 and 290,959.20
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Solution
The fourth proportional to 764,247.87, 1,146,382.80 and 290,959.20 is: 436,442.99
Step by Step Solution
- Step 1: Write the proportion equation
764,247.87 : 1,146,382.80 = 290,959.20 : x - Step 2: Convert to fraction form
764,247.87/1,146,382.80 = 290,959.20/x - Step 3: Cross multiply
764,247.87x = 1,146,382.80 × 290,959.20 - Step 4: Simplify right side
764,247.87x = 333,550,622,381.76 - Step 5: Solve for x
x = 333,550,622,381.76/764,247.87 - Step 6: Final answer
x = 436,442.99
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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.