Finding the Fourth Proportional to 667,128.13, 920,625.74 and 361,202.06
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Solution
The fourth proportional to 667,128.13, 920,625.74 and 361,202.06 is: 498,452.85
Step by Step Solution
- Step 1: Write the proportion equation
667,128.13 : 920,625.74 = 361,202.06 : x - Step 2: Convert to fraction form
667,128.13/920,625.74 = 361,202.06/x - Step 3: Cross multiply
667,128.13x = 920,625.74 × 361,202.06 - Step 4: Simplify right side
667,128.13x = 332,531,913,777.02 - Step 5: Solve for x
x = 332,531,913,777.02/667,128.13 - Step 6: Final answer
x = 498,452.85
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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.