Finding the Fourth Proportional to 1,669,786.65, 2,304,309.97 and 905,840.21
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Solution
The fourth proportional to 1,669,786.65, 2,304,309.97 and 905,840.21 is: 1,250,061.88
Step by Step Solution
- Step 1: Write the proportion equation
1,669,786.65 : 2,304,309.97 = 905,840.21 : x - Step 2: Convert to fraction form
1,669,786.65/2,304,309.97 = 905,840.21/x - Step 3: Cross multiply
1,669,786.65x = 2,304,309.97 × 905,840.21 - Step 4: Simplify right side
1,669,786.65x = 2,087,336,634,022.97 - Step 5: Solve for x
x = 2,087,336,634,022.97/1,669,786.65 - Step 6: Final answer
x = 1,250,061.88
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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.