Finding the Fourth Proportional to 2,378,639.40, 3,563,120.70 and 1,477,314.60
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Solution
The fourth proportional to 2,378,639.40, 3,563,120.70 and 1,477,314.60 is: 2,212,966.89
Step by Step Solution
- Step 1: Write the proportion equation
2,378,639.40 : 3,563,120.70 = 1,477,314.60 : x - Step 2: Convert to fraction form
2,378,639.40/3,563,120.70 = 1,477,314.60/x - Step 3: Cross multiply
2,378,639.40x = 3,563,120.70 × 1,477,314.60 - Step 4: Simplify right side
2,378,639.40x = 5,263,850,231,672.22 - Step 5: Solve for x
x = 5,263,850,231,672.22/2,378,639.40 - Step 6: Final answer
x = 2,212,966.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.