Finding the Fourth Proportional to 2,256,786.84, 3,114,365.70 and 1,289,937.96
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Solution
The fourth proportional to 2,256,786.84, 3,114,365.70 and 1,289,937.96 is: 1,780,114.31
Step by Step Solution
- Step 1: Write the proportion equation
2,256,786.84 : 3,114,365.70 = 1,289,937.96 : x - Step 2: Convert to fraction form
2,256,786.84/3,114,365.70 = 1,289,937.96/x - Step 3: Cross multiply
2,256,786.84x = 3,114,365.70 × 1,289,937.96 - Step 4: Simplify right side
2,256,786.84x = 4,017,338,537,751.97 - Step 5: Solve for x
x = 4,017,338,537,751.97/2,256,786.84 - Step 6: Final answer
x = 1,780,114.31
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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.