Finding the Fourth Proportional to 748,843.74, 1,033,404.87 and 409,311.96
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Solution
The fourth proportional to 748,843.74, 1,033,404.87 and 409,311.96 is: 564,850.78
Step by Step Solution
- Step 1: Write the proportion equation
748,843.74 : 1,033,404.87 = 409,311.96 : x - Step 2: Convert to fraction form
748,843.74/1,033,404.87 = 409,311.96/x - Step 3: Cross multiply
748,843.74x = 1,033,404.87 × 409,311.96 - Step 4: Simplify right side
748,843.74x = 422,984,972,813.25 - Step 5: Solve for x
x = 422,984,972,813.25/748,843.74 - Step 6: Final answer
x = 564,850.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.