Finding the Fourth Proportional to 1,252,872, 1,728,964.58 and 679,912.29
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Solution
The fourth proportional to 1,252,872, 1,728,964.58 and 679,912.29 is: 938,279.62
Step by Step Solution
- Step 1: Write the proportion equation
1,252,872 : 1,728,964.58 = 679,912.29 : x - Step 2: Convert to fraction form
1,252,872/1,728,964.58 = 679,912.29/x - Step 3: Cross multiply
1,252,872x = 1,728,964.58 × 679,912.29 - Step 4: Simplify right side
1,252,872x = 1,175,544,263,517.13 - Step 5: Solve for x
x = 1,175,544,263,517.13/1,252,872 - Step 6: Final answer
x = 938,279.62
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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.