Finding the Fourth Proportional to 1,347,438.75, 1,859,467.10 and 743,826.75
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Solution
The fourth proportional to 1,347,438.75, 1,859,467.10 and 743,826.75 is: 1,026,481.81
Step by Step Solution
- Step 1: Write the proportion equation
1,347,438.75 : 1,859,467.10 = 743,826.75 : x - Step 2: Convert to fraction form
1,347,438.75/1,859,467.10 = 743,826.75/x - Step 3: Cross multiply
1,347,438.75x = 1,859,467.10 × 743,826.75 - Step 4: Simplify right side
1,347,438.75x = 1,383,121,366,005.79 - Step 5: Solve for x
x = 1,383,121,366,005.79/1,347,438.75 - Step 6: Final answer
x = 1,026,481.81
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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.