Finding the Fourth Proportional to 667,091.43, 920,579.36 and 361,159.70
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Solution
The fourth proportional to 667,091.43, 920,579.36 and 361,159.70 is: 498,396.69
Step by Step Solution
- Step 1: Write the proportion equation
667,091.43 : 920,579.36 = 361,159.70 : x - Step 2: Convert to fraction form
667,091.43/920,579.36 = 361,159.70/x - Step 3: Cross multiply
667,091.43x = 920,579.36 × 361,159.70 - Step 4: Simplify right side
667,091.43x = 332,476,159,075.10 - Step 5: Solve for x
x = 332,476,159,075.10/667,091.43 - Step 6: Final answer
x = 498,396.69
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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.