Finding the Fourth Proportional to 1,276,399.90, 1,761,431.87 and 703,440.08
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Solution
The fourth proportional to 1,276,399.90, 1,761,431.87 and 703,440.08 is: 970,747.31
Step by Step Solution
- Step 1: Write the proportion equation
1,276,399.90 : 1,761,431.87 = 703,440.08 : x - Step 2: Convert to fraction form
1,276,399.90/1,761,431.87 = 703,440.08/x - Step 3: Cross multiply
1,276,399.90x = 1,761,431.87 × 703,440.08 - Step 4: Simplify right side
1,276,399.90x = 1,239,061,763,222.99 - Step 5: Solve for x
x = 1,239,061,763,222.99/1,276,399.90 - Step 6: Final answer
x = 970,747.31
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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.