Finding the Fourth Proportional to 1,769,760.99, 2,642,636.59 and 1,405,847.25
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Solution
The fourth proportional to 1,769,760.99, 2,642,636.59 and 1,405,847.25 is: 2,099,234.53
Step by Step Solution
- Step 1: Write the proportion equation
1,769,760.99 : 2,642,636.59 = 1,405,847.25 : x - Step 2: Convert to fraction form
1,769,760.99/2,642,636.59 = 1,405,847.25/x - Step 3: Cross multiply
1,769,760.99x = 2,642,636.59 × 1,405,847.25 - Step 4: Simplify right side
1,769,760.99x = 3,715,143,379,286.26 - Step 5: Solve for x
x = 3,715,143,379,286.26/1,769,760.99 - Step 6: Final answer
x = 2,099,234.53
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.