Finding the Fourth Proportional to 1,286,021.77, 1,928,638.71 and 889,212.49
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Solution
The fourth proportional to 1,286,021.77, 1,928,638.71 and 889,212.49 is: 1,333,546.34
Step by Step Solution
- Step 1: Write the proportion equation
1,286,021.77 : 1,928,638.71 = 889,212.49 : x - Step 2: Convert to fraction form
1,286,021.77/1,928,638.71 = 889,212.49/x - Step 3: Cross multiply
1,286,021.77x = 1,928,638.71 × 889,212.49 - Step 4: Simplify right side
1,286,021.77x = 1,714,969,629,629.49 - Step 5: Solve for x
x = 1,714,969,629,629.49/1,286,021.77 - Step 6: Final answer
x = 1,333,546.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.