Finding the Fourth Proportional to 1,202,780.37, 1,659,767.15 and 658,821.45
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Solution
The fourth proportional to 1,202,780.37, 1,659,767.15 and 658,821.45 is: 909,135.39
Step by Step Solution
- Step 1: Write the proportion equation
1,202,780.37 : 1,659,767.15 = 658,821.45 : x - Step 2: Convert to fraction form
1,202,780.37/1,659,767.15 = 658,821.45/x - Step 3: Cross multiply
1,202,780.37x = 1,659,767.15 × 658,821.45 - Step 4: Simplify right side
1,202,780.37x = 1,093,490,198,960.36 - Step 5: Solve for x
x = 1,093,490,198,960.36/1,202,780.37 - Step 6: Final answer
x = 909,135.39
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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.