Finding the Fourth Proportional to 2,821,839.13, 3,894,071.77 and 1,660,360.62
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Solution
The fourth proportional to 2,821,839.13, 3,894,071.77 and 1,660,360.62 is: 2,291,258.69
Step by Step Solution
- Step 1: Write the proportion equation
2,821,839.13 : 3,894,071.77 = 1,660,360.62 : x - Step 2: Convert to fraction form
2,821,839.13/3,894,071.77 = 1,660,360.62/x - Step 3: Cross multiply
2,821,839.13x = 3,894,071.77 × 1,660,360.62 - Step 4: Simplify right side
2,821,839.13x = 6,465,563,418,361.70 - Step 5: Solve for x
x = 6,465,563,418,361.70/2,821,839.13 - Step 6: Final answer
x = 2,291,258.69
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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.