Finding the Fourth Proportional to 1,939,581.99, 2,676,431.57 and 1,080,222.21
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Solution
The fourth proportional to 1,939,581.99, 2,676,431.57 and 1,080,222.21 is: 1,490,599.95
Step by Step Solution
- Step 1: Write the proportion equation
1,939,581.99 : 2,676,431.57 = 1,080,222.21 : x - Step 2: Convert to fraction form
1,939,581.99/2,676,431.57 = 1,080,222.21/x - Step 3: Cross multiply
1,939,581.99x = 2,676,431.57 × 1,080,222.21 - Step 4: Simplify right side
1,939,581.99x = 2,891,140,820,058.06 - Step 5: Solve for x
x = 2,891,140,820,058.06/1,939,581.99 - Step 6: Final answer
x = 1,490,599.95
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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.