Finding the Fourth Proportional to 1,638,634.88, 2,261,450.81 and 903,732.92
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Solution
The fourth proportional to 1,638,634.88, 2,261,450.81 and 903,732.92 is: 1,247,225.71
Step by Step Solution
- Step 1: Write the proportion equation
1,638,634.88 : 2,261,450.81 = 903,732.92 : x - Step 2: Convert to fraction form
1,638,634.88/2,261,450.81 = 903,732.92/x - Step 3: Cross multiply
1,638,634.88x = 2,261,450.81 × 903,732.92 - Step 4: Simplify right side
1,638,634.88x = 2,043,747,543,957.67 - Step 5: Solve for x
x = 2,043,747,543,957.67/1,638,634.88 - Step 6: Final answer
x = 1,247,225.71
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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.