Finding the Fourth Proportional to 1,993,456.38, 2,750,671.83 and 1,122,163.74
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Solution
The fourth proportional to 1,993,456.38, 2,750,671.83 and 1,122,163.74 is: 1,548,418.22
Step by Step Solution
- Step 1: Write the proportion equation
1,993,456.38 : 2,750,671.83 = 1,122,163.74 : x - Step 2: Convert to fraction form
1,993,456.38/2,750,671.83 = 1,122,163.74/x - Step 3: Cross multiply
1,993,456.38x = 2,750,671.83 × 1,122,163.74 - Step 4: Simplify right side
1,993,456.38x = 3,086,704,188,265.44 - Step 5: Solve for x
x = 3,086,704,188,265.44/1,993,456.38 - Step 6: Final answer
x = 1,548,418.22
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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.