Finding the Fourth Proportional to 2,320,537.20, 3,202,291.68 and 1,287,984.78
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Solution
The fourth proportional to 2,320,537.20, 3,202,291.68 and 1,287,984.78 is: 1,777,391.43
Step by Step Solution
- Step 1: Write the proportion equation
2,320,537.20 : 3,202,291.68 = 1,287,984.78 : x - Step 2: Convert to fraction form
2,320,537.20/3,202,291.68 = 1,287,984.78/x - Step 3: Cross multiply
2,320,537.20x = 3,202,291.68 × 1,287,984.78 - Step 4: Simplify right side
2,320,537.20x = 4,124,502,928,949.17 - Step 5: Solve for x
x = 4,124,502,928,949.17/2,320,537.20 - Step 6: Final answer
x = 1,777,391.43
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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.