Finding the Fourth Proportional to 1,660,821.51, 2,491,232.30 and 398,649.13
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Solution
The fourth proportional to 1,660,821.51, 2,491,232.30 and 398,649.13 is: 597,973.70
Step by Step Solution
- Step 1: Write the proportion equation
1,660,821.51 : 2,491,232.30 = 398,649.13 : x - Step 2: Convert to fraction form
1,660,821.51/2,491,232.30 = 398,649.13/x - Step 3: Cross multiply
1,660,821.51x = 2,491,232.30 × 398,649.13 - Step 4: Simplify right side
1,660,821.51x = 993,127,587,029.65 - Step 5: Solve for x
x = 993,127,587,029.65/1,660,821.51 - Step 6: Final answer
x = 597,973.70
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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.