Finding the Fourth Proportional to 1,966,566.20, 2,713,912.09 and 1,107,157.21
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Solution
The fourth proportional to 1,966,566.20, 2,713,912.09 and 1,107,157.21 is: 1,527,905.51
Step by Step Solution
- Step 1: Write the proportion equation
1,966,566.20 : 2,713,912.09 = 1,107,157.21 : x - Step 2: Convert to fraction form
1,966,566.20/2,713,912.09 = 1,107,157.21/x - Step 3: Cross multiply
1,966,566.20x = 2,713,912.09 × 1,107,157.21 - Step 4: Simplify right side
1,966,566.20x = 3,004,727,328,197.00 - Step 5: Solve for x
x = 3,004,727,328,197.00/1,966,566.20 - Step 6: Final answer
x = 1,527,905.51
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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.