Finding the Fourth Proportional to 821,676.77, 1,133,906.14 and 459,163.07
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Solution
The fourth proportional to 821,676.77, 1,133,906.14 and 459,163.07 is: 633,640.68
Step by Step Solution
- Step 1: Write the proportion equation
821,676.77 : 1,133,906.14 = 459,163.07 : x - Step 2: Convert to fraction form
821,676.77/1,133,906.14 = 459,163.07/x - Step 3: Cross multiply
821,676.77x = 1,133,906.14 × 459,163.07 - Step 4: Simplify right side
821,676.77x = 520,647,824,334.25 - Step 5: Solve for x
x = 520,647,824,334.25/821,676.77 - Step 6: Final answer
x = 633,640.68
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1.5x scale
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.