Finding the Fourth Proportional to 1,939,679.87, 2,676,841.26 and 1,080,240.12
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Solution
The fourth proportional to 1,939,679.87, 2,676,841.26 and 1,080,240.12 is: 1,490,777.62
Step by Step Solution
- Step 1: Write the proportion equation
1,939,679.87 : 2,676,841.26 = 1,080,240.12 : x - Step 2: Convert to fraction form
1,939,679.87/2,676,841.26 = 1,080,240.12/x - Step 3: Cross multiply
1,939,679.87x = 2,676,841.26 × 1,080,240.12 - Step 4: Simplify right side
1,939,679.87x = 2,891,631,338,012.41 - Step 5: Solve for x
x = 2,891,631,338,012.41/1,939,679.87 - Step 6: Final answer
x = 1,490,777.62
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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.