Finding the Fourth Proportional to 1,451,469.97, 2,000,074.57 and 1,122,786.18
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Solution
The fourth proportional to 1,451,469.97, 2,000,074.57 and 1,122,786.18 is: 1,547,159.87
Step by Step Solution
- Step 1: Write the proportion equation
1,451,469.97 : 2,000,074.57 = 1,122,786.18 : x - Step 2: Convert to fraction form
1,451,469.97/2,000,074.57 = 1,122,786.18/x - Step 3: Cross multiply
1,451,469.97x = 2,000,074.57 × 1,122,786.18 - Step 4: Simplify right side
1,451,469.97x = 2,245,656,086,165.44 - Step 5: Solve for x
x = 2,245,656,086,165.44/1,451,469.97 - Step 6: Final answer
x = 1,547,159.87
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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.