Finding the Fourth Proportional to 1,276,133.20, 1,761,142.26 and 703,173.28
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Solution
The fourth proportional to 1,276,133.20, 1,761,142.26 and 703,173.28 is: 970,422.35
Step by Step Solution
- Step 1: Write the proportion equation
1,276,133.20 : 1,761,142.26 = 703,173.28 : x - Step 2: Convert to fraction form
1,276,133.20/1,761,142.26 = 703,173.28/x - Step 3: Cross multiply
1,276,133.20x = 1,761,142.26 × 703,173.28 - Step 4: Simplify right side
1,276,133.20x = 1,238,388,179,510.81 - Step 5: Solve for x
x = 1,238,388,179,510.81/1,276,133.20 - Step 6: Final answer
x = 970,422.35
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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.