Finding the Fourth Proportional to 1,587,791.70, 2,191,163.07 and 862,639.26
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Solution
The fourth proportional to 1,587,791.70, 2,191,163.07 and 862,639.26 is: 1,190,447.90
Step by Step Solution
- Step 1: Write the proportion equation
1,587,791.70 : 2,191,163.07 = 862,639.26 : x - Step 2: Convert to fraction form
1,587,791.70/2,191,163.07 = 862,639.26/x - Step 3: Cross multiply
1,587,791.70x = 2,191,163.07 × 862,639.26 - Step 4: Simplify right side
1,587,791.70x = 1,890,183,289,244.13 - Step 5: Solve for x
x = 1,890,183,289,244.13/1,587,791.70 - Step 6: Final answer
x = 1,190,447.90
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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.