Finding the Fourth Proportional to 2,639,206.08, 3,642,091.56 and 1,431,982.08
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Solution
The fourth proportional to 2,639,206.08, 3,642,091.56 and 1,431,982.08 is: 1,976,128.31
Step by Step Solution
- Step 1: Write the proportion equation
2,639,206.08 : 3,642,091.56 = 1,431,982.08 : x - Step 2: Convert to fraction form
2,639,206.08/3,642,091.56 = 1,431,982.08/x - Step 3: Cross multiply
2,639,206.08x = 3,642,091.56 × 1,431,982.08 - Step 4: Simplify right side
2,639,206.08x = 5,215,409,847,639.25 - Step 5: Solve for x
x = 5,215,409,847,639.25/2,639,206.08 - Step 6: Final answer
x = 1,976,128.31
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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.