Finding the Fourth Proportional to 1,638,227.21, 2,260,764.05 and 913,120.97
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Solution
The fourth proportional to 1,638,227.21, 2,260,764.05 and 913,120.97 is: 1,260,112.79
Step by Step Solution
- Step 1: Write the proportion equation
1,638,227.21 : 2,260,764.05 = 913,120.97 : x - Step 2: Convert to fraction form
1,638,227.21/2,260,764.05 = 913,120.97/x - Step 3: Cross multiply
1,638,227.21x = 2,260,764.05 × 913,120.97 - Step 4: Simplify right side
1,638,227.21x = 2,064,351,046,407.70 - Step 5: Solve for x
x = 2,064,351,046,407.70/1,638,227.21 - Step 6: Final answer
x = 1,260,112.79
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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.