Finding the Fourth Proportional to 748,311, 1,122,745.36 and 449,006.40
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Solution
The fourth proportional to 748,311, 1,122,745.36 and 449,006.40 is: 673,676.92
Step by Step Solution
- Step 1: Write the proportion equation
748,311 : 1,122,745.36 = 449,006.40 : x - Step 2: Convert to fraction form
748,311/1,122,745.36 = 449,006.40/x - Step 3: Cross multiply
748,311x = 1,122,745.36 × 449,006.40 - Step 4: Simplify right side
748,311x = 504,119,852,210.30 - Step 5: Solve for x
x = 504,119,852,210.30/748,311 - Step 6: Final answer
x = 673,676.92
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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.