Finding the Fourth Proportional to 756,576.28, 1,135,135.44 and 324,112.32
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Solution
The fourth proportional to 756,576.28, 1,135,135.44 and 324,112.32 is: 486,284.58
Step by Step Solution
- Step 1: Write the proportion equation
756,576.28 : 1,135,135.44 = 324,112.32 : x - Step 2: Convert to fraction form
756,576.28/1,135,135.44 = 324,112.32/x - Step 3: Cross multiply
756,576.28x = 1,135,135.44 × 324,112.32 - Step 4: Simplify right side
756,576.28x = 367,911,380,972.62 - Step 5: Solve for x
x = 367,911,380,972.62/756,576.28 - Step 6: Final answer
x = 486,284.58
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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.