Finding the Fourth Proportional to 1,277,189.48, 1,762,556.97 and 780,553.84
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Solution
The fourth proportional to 1,277,189.48, 1,762,556.97 and 780,553.84 is: 1,077,185.99
Step by Step Solution
- Step 1: Write the proportion equation
1,277,189.48 : 1,762,556.97 = 780,553.84 : x - Step 2: Convert to fraction form
1,277,189.48/1,762,556.97 = 780,553.84/x - Step 3: Cross multiply
1,277,189.48x = 1,762,556.97 × 780,553.84 - Step 4: Simplify right side
1,277,189.48x = 1,375,770,611,152.26 - Step 5: Solve for x
x = 1,375,770,611,152.26/1,277,189.48 - Step 6: Final answer
x = 1,077,185.99
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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.