Finding the Fourth Proportional to 1,263,040.98, 1,743,021.63 and 690,116.70
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Solution
The fourth proportional to 1,263,040.98, 1,743,021.63 and 690,116.70 is: 952,374.75
Step by Step Solution
- Step 1: Write the proportion equation
1,263,040.98 : 1,743,021.63 = 690,116.70 : x - Step 2: Convert to fraction form
1,263,040.98/1,743,021.63 = 690,116.70/x - Step 3: Cross multiply
1,263,040.98x = 1,743,021.63 × 690,116.70 - Step 4: Simplify right side
1,263,040.98x = 1,202,888,335,324.22 - Step 5: Solve for x
x = 1,202,888,335,324.22/1,263,040.98 - Step 6: Final answer
x = 952,374.75
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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.