Finding the Fourth Proportional to 1,121,851.97, 1,548,149.60 and 612,550.70
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Solution
The fourth proportional to 1,121,851.97, 1,548,149.60 and 612,550.70 is: 845,316.62
Step by Step Solution
- Step 1: Write the proportion equation
1,121,851.97 : 1,548,149.60 = 612,550.70 : x - Step 2: Convert to fraction form
1,121,851.97/1,548,149.60 = 612,550.70/x - Step 3: Cross multiply
1,121,851.97x = 1,548,149.60 × 612,550.70 - Step 4: Simplify right side
1,121,851.97x = 948,320,118,121.97 - Step 5: Solve for x
x = 948,320,118,121.97/1,121,851.97 - Step 6: Final answer
x = 845,316.62
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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.