Finding the Fourth Proportional to 1,276,689.25, 1,761,843.05 and 703,749.93
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Solution
The fourth proportional to 1,276,689.25, 1,761,843.05 and 703,749.93 is: 971,181.45
Step by Step Solution
- Step 1: Write the proportion equation
1,276,689.25 : 1,761,843.05 = 703,749.93 : x - Step 2: Convert to fraction form
1,276,689.25/1,761,843.05 = 703,749.93/x - Step 3: Cross multiply
1,276,689.25x = 1,761,843.05 × 703,749.93 - Step 4: Simplify right side
1,276,689.25x = 1,239,896,923,108.49 - Step 5: Solve for x
x = 1,239,896,923,108.49/1,276,689.25 - Step 6: Final answer
x = 971,181.45
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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.