Finding the Fourth Proportional to 1,984,786.26, 2,737,995.60 and 1,296,860.55
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Solution
The fourth proportional to 1,984,786.26, 2,737,995.60 and 1,296,860.55 is: 1,789,007.99
Step by Step Solution
- Step 1: Write the proportion equation
1,984,786.26 : 2,737,995.60 = 1,296,860.55 : x - Step 2: Convert to fraction form
1,984,786.26/2,737,995.60 = 1,296,860.55/x - Step 3: Cross multiply
1,984,786.26x = 2,737,995.60 × 1,296,860.55 - Step 4: Simplify right side
1,984,786.26x = 3,550,798,479,713.58 - Step 5: Solve for x
x = 3,550,798,479,713.58/1,984,786.26 - Step 6: Final answer
x = 1,789,007.99
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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.