Finding the Fourth Proportional to 2,231,813.76, 3,080,467.95 and 1,373,142.90
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Solution
The fourth proportional to 2,231,813.76, 3,080,467.95 and 1,373,142.90 is: 1,895,284.80
Step by Step Solution
- Step 1: Write the proportion equation
2,231,813.76 : 3,080,467.95 = 1,373,142.90 : x - Step 2: Convert to fraction form
2,231,813.76/3,080,467.95 = 1,373,142.90/x - Step 3: Cross multiply
2,231,813.76x = 3,080,467.95 × 1,373,142.90 - Step 4: Simplify right side
2,231,813.76x = 4,229,922,694,220.06 - Step 5: Solve for x
x = 4,229,922,694,220.06/2,231,813.76 - Step 6: Final answer
x = 1,895,284.80
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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.