Finding the Fourth Proportional to 1,126,199.75, 1,554,180.74 and 642,755.19
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Solution
The fourth proportional to 1,126,199.75, 1,554,180.74 and 642,755.19 is: 887,016.48
Step by Step Solution
- Step 1: Write the proportion equation
1,126,199.75 : 1,554,180.74 = 642,755.19 : x - Step 2: Convert to fraction form
1,126,199.75/1,554,180.74 = 642,755.19/x - Step 3: Cross multiply
1,126,199.75x = 1,554,180.74 × 642,755.19 - Step 4: Simplify right side
1,126,199.75x = 998,957,738,439.93 - Step 5: Solve for x
x = 998,957,738,439.93/1,126,199.75 - Step 6: Final answer
x = 887,016.48
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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.