Finding the Fourth Proportional to 1,276,328.40, 1,761,324.84 and 703,368.96
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Solution
The fourth proportional to 1,276,328.40, 1,761,324.84 and 703,368.96 is: 970,644.56
Step by Step Solution
- Step 1: Write the proportion equation
1,276,328.40 : 1,761,324.84 = 703,368.96 : x - Step 2: Convert to fraction form
1,276,328.40/1,761,324.84 = 703,368.96/x - Step 3: Cross multiply
1,276,328.40x = 1,761,324.84 × 703,368.96 - Step 4: Simplify right side
1,276,328.40x = 1,238,861,220,932.97 - Step 5: Solve for x
x = 1,238,861,220,932.97/1,276,328.40 - Step 6: Final answer
x = 970,644.56
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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.