Finding the Fourth Proportional to 3,579,403.92, 4,939,578.24 and 1,969,771.92
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Solution
The fourth proportional to 3,579,403.92, 4,939,578.24 and 1,969,771.92 is: 2,718,285.71
Step by Step Solution
- Step 1: Write the proportion equation
3,579,403.92 : 4,939,578.24 = 1,969,771.92 : x - Step 2: Convert to fraction form
3,579,403.92/4,939,578.24 = 1,969,771.92/x - Step 3: Cross multiply
3,579,403.92x = 4,939,578.24 × 1,969,771.92 - Step 4: Simplify right side
3,579,403.92x = 9,729,842,513,795.02 - Step 5: Solve for x
x = 9,729,842,513,795.02/3,579,403.92 - Step 6: Final answer
x = 2,718,285.71
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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.