Finding the Fourth Proportional to 792,639.26, 1,188,709.10 and 260,036.18
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Solution
The fourth proportional to 792,639.26, 1,188,709.10 and 260,036.18 is: 389,972.32
Step by Step Solution
- Step 1: Write the proportion equation
792,639.26 : 1,188,709.10 = 260,036.18 : x - Step 2: Convert to fraction form
792,639.26/1,188,709.10 = 260,036.18/x - Step 3: Cross multiply
792,639.26x = 1,188,709.10 × 260,036.18 - Step 4: Simplify right side
792,639.26x = 309,107,373,495.24 - Step 5: Solve for x
x = 309,107,373,495.24/792,639.26 - Step 6: Final answer
x = 389,972.32
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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.