Finding the Fourth Proportional to 1,996,104.21, 2,751,755.70 and 1,422,147.93
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Solution
The fourth proportional to 1,996,104.21, 2,751,755.70 and 1,422,147.93 is: 1,960,520.72
Step by Step Solution
- Step 1: Write the proportion equation
1,996,104.21 : 2,751,755.70 = 1,422,147.93 : x - Step 2: Convert to fraction form
1,996,104.21/2,751,755.70 = 1,422,147.93/x - Step 3: Cross multiply
1,996,104.21x = 2,751,755.70 × 1,422,147.93 - Step 4: Simplify right side
1,996,104.21x = 3,913,403,672,620.70 - Step 5: Solve for x
x = 3,913,403,672,620.70/1,996,104.21 - Step 6: Final answer
x = 1,960,520.72
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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.