Finding the Fourth Proportional to 3,995,511.80, 5,512,457.05 and 2,275,414.43
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Solution
The fourth proportional to 3,995,511.80, 5,512,457.05 and 2,275,414.43 is: 3,139,303.53
Step by Step Solution
- Step 1: Write the proportion equation
3,995,511.80 : 5,512,457.05 = 2,275,414.43 : x - Step 2: Convert to fraction form
3,995,511.80/5,512,457.05 = 2,275,414.43/x - Step 3: Cross multiply
3,995,511.80x = 5,512,457.05 × 2,275,414.43 - Step 4: Simplify right side
3,995,511.80x = 12,543,124,283,074.41 - Step 5: Solve for x
x = 12,543,124,283,074.41/3,995,511.80 - Step 6: Final answer
x = 3,139,303.53
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1.5x scale
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.