Finding the Fourth Proportional to 1,421,606.21, 1,961,544.44 and 809,745.58
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Solution
The fourth proportional to 1,421,606.21, 1,961,544.44 and 809,745.58 is: 1,117,293.89
Step by Step Solution
- Step 1: Write the proportion equation
1,421,606.21 : 1,961,544.44 = 809,745.58 : x - Step 2: Convert to fraction form
1,421,606.21/1,961,544.44 = 809,745.58/x - Step 3: Cross multiply
1,421,606.21x = 1,961,544.44 × 809,745.58 - Step 4: Simplify right side
1,421,606.21x = 1,588,351,930,455.85 - Step 5: Solve for x
x = 1,588,351,930,455.85/1,421,606.21 - Step 6: Final answer
x = 1,117,293.89
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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.