Finding the Fourth Proportional to 2,798,879.67, 3,863,645.69 and 1,881,640.80
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Solution
The fourth proportional to 2,798,879.67, 3,863,645.69 and 1,881,640.80 is: 2,597,465.49
Step by Step Solution
- Step 1: Write the proportion equation
2,798,879.67 : 3,863,645.69 = 1,881,640.80 : x - Step 2: Convert to fraction form
2,798,879.67/3,863,645.69 = 1,881,640.80/x - Step 3: Cross multiply
2,798,879.67x = 3,863,645.69 × 1,881,640.80 - Step 4: Simplify right side
2,798,879.67x = 7,269,993,367,048.15 - Step 5: Solve for x
x = 7,269,993,367,048.15/2,798,879.67 - Step 6: Final answer
x = 2,597,465.49
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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.