Finding the Fourth Proportional to 1,718,782.75, 2,578,163.89 and 439,388.21
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Solution
The fourth proportional to 1,718,782.75, 2,578,163.89 and 439,388.21 is: 659,079.70
Step by Step Solution
- Step 1: Write the proportion equation
1,718,782.75 : 2,578,163.89 = 439,388.21 : x - Step 2: Convert to fraction form
1,718,782.75/2,578,163.89 = 439,388.21/x - Step 3: Cross multiply
1,718,782.75x = 2,578,163.89 × 439,388.21 - Step 4: Simplify right side
1,718,782.75x = 1,132,814,811,607.13 - Step 5: Solve for x
x = 1,132,814,811,607.13/1,718,782.75 - Step 6: Final answer
x = 659,079.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.