Finding the Fourth Proportional to 1,204,186.62, 1,660,415.50 and 768,020.70
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Solution
The fourth proportional to 1,204,186.62, 1,660,415.50 and 768,020.70 is: 1,058,999.87
Step by Step Solution
- Step 1: Write the proportion equation
1,204,186.62 : 1,660,415.50 = 768,020.70 : x - Step 2: Convert to fraction form
1,204,186.62/1,660,415.50 = 768,020.70/x - Step 3: Cross multiply
1,204,186.62x = 1,660,415.50 × 768,020.70 - Step 4: Simplify right side
1,204,186.62x = 1,275,233,470,760.75 - Step 5: Solve for x
x = 1,275,233,470,760.75/1,204,186.62 - Step 6: Final answer
x = 1,058,999.87
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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.