Finding the Fourth Proportional to 1,141,187.75, 1,574,819.84 and 631,879.19
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Solution
The fourth proportional to 1,141,187.75, 1,574,819.84 and 631,879.19 is: 871,982.62
Step by Step Solution
- Step 1: Write the proportion equation
1,141,187.75 : 1,574,819.84 = 631,879.19 : x - Step 2: Convert to fraction form
1,141,187.75/1,574,819.84 = 631,879.19/x - Step 3: Cross multiply
1,141,187.75x = 1,574,819.84 × 631,879.19 - Step 4: Simplify right side
1,141,187.75x = 995,095,878,600.73 - Step 5: Solve for x
x = 995,095,878,600.73/1,141,187.75 - Step 6: Final answer
x = 871,982.62
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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.