Finding the Fourth Proportional to 1,891,028.72, 2,821,794.14 and 1,687,223.84
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Solution
The fourth proportional to 1,891,028.72, 2,821,794.14 and 1,687,223.84 is: 2,517,676.39
Step by Step Solution
- Step 1: Write the proportion equation
1,891,028.72 : 2,821,794.14 = 1,687,223.84 : x - Step 2: Convert to fraction form
1,891,028.72/2,821,794.14 = 1,687,223.84/x - Step 3: Cross multiply
1,891,028.72x = 2,821,794.14 × 1,687,223.84 - Step 4: Simplify right side
1,891,028.72x = 4,760,998,355,852.84 - Step 5: Solve for x
x = 4,760,998,355,852.84/1,891,028.72 - Step 6: Final answer
x = 2,517,676.39
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.