Finding the Fourth Proportional to 3,391,403.25, 4,680,135.41 and 1,863,608.79
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Solution
The fourth proportional to 3,391,403.25, 4,680,135.41 and 1,863,608.79 is: 2,571,779.54
Step by Step Solution
- Step 1: Write the proportion equation
3,391,403.25 : 4,680,135.41 = 1,863,608.79 : x - Step 2: Convert to fraction form
3,391,403.25/4,680,135.41 = 1,863,608.79/x - Step 3: Cross multiply
3,391,403.25x = 4,680,135.41 × 1,863,608.79 - Step 4: Simplify right side
3,391,403.25x = 8,721,941,468,586.24 - Step 5: Solve for x
x = 8,721,941,468,586.24/3,391,403.25 - Step 6: Final answer
x = 2,571,779.54
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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.