Finding the Fourth Proportional to 2,122,879.29, 2,927,653.38 and 1,397,458.68
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Solution
The fourth proportional to 2,122,879.29, 2,927,653.38 and 1,397,458.68 is: 1,927,229.05
Step by Step Solution
- Step 1: Write the proportion equation
2,122,879.29 : 2,927,653.38 = 1,397,458.68 : x - Step 2: Convert to fraction form
2,122,879.29/2,927,653.38 = 1,397,458.68/x - Step 3: Cross multiply
2,122,879.29x = 2,927,653.38 × 1,397,458.68 - Step 4: Simplify right side
2,122,879.29x = 4,091,274,627,912.34 - Step 5: Solve for x
x = 4,091,274,627,912.34/2,122,879.29 - Step 6: Final answer
x = 1,927,229.05
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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.