Finding the Fourth Proportional to 1,939,678.93, 2,676,839.96 and 1,080,239.19
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Solution
The fourth proportional to 1,939,678.93, 2,676,839.96 and 1,080,239.19 is: 1,490,776.32
Step by Step Solution
- Step 1: Write the proportion equation
1,939,678.93 : 2,676,839.96 = 1,080,239.19 : x - Step 2: Convert to fraction form
1,939,678.93/2,676,839.96 = 1,080,239.19/x - Step 3: Cross multiply
1,939,678.93x = 2,676,839.96 × 1,080,239.19 - Step 4: Simplify right side
1,939,678.93x = 2,891,627,416,736.14 - Step 5: Solve for x
x = 2,891,627,416,736.14/1,939,678.93 - Step 6: Final answer
x = 1,490,776.32
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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.