Finding the Fourth Proportional to 2,131,754.36, 2,941,988.72 and 1,214,022.33
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Solution
The fourth proportional to 2,131,754.36, 2,941,988.72 and 1,214,022.33 is: 1,675,446.32
Step by Step Solution
- Step 1: Write the proportion equation
2,131,754.36 : 2,941,988.72 = 1,214,022.33 : x - Step 2: Convert to fraction form
2,131,754.36/2,941,988.72 = 1,214,022.33/x - Step 3: Cross multiply
2,131,754.36x = 2,941,988.72 × 1,214,022.33 - Step 4: Simplify right side
2,131,754.36x = 3,571,639,994,618.01 - Step 5: Solve for x
x = 3,571,639,994,618.01/2,131,754.36 - Step 6: Final answer
x = 1,675,446.32
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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.