Finding the Fourth Proportional to 1,542,163.60, 2,128,185.48 and 863,100.12
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Solution
The fourth proportional to 1,542,163.60, 2,128,185.48 and 863,100.12 is: 1,191,078.00
Step by Step Solution
- Step 1: Write the proportion equation
1,542,163.60 : 2,128,185.48 = 863,100.12 : x - Step 2: Convert to fraction form
1,542,163.60/2,128,185.48 = 863,100.12/x - Step 3: Cross multiply
1,542,163.60x = 2,128,185.48 × 863,100.12 - Step 4: Simplify right side
1,542,163.60x = 1,836,837,143,170.26 - Step 5: Solve for x
x = 1,836,837,143,170.26/1,542,163.60 - Step 6: Final answer
x = 1,191,078.00
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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.