Finding the Fourth Proportional to 667,229.67, 920,778.84 and 361,309.68
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Solution
The fourth proportional to 667,229.67, 920,778.84 and 361,309.68 is: 498,608.38
Step by Step Solution
- Step 1: Write the proportion equation
667,229.67 : 920,778.84 = 361,309.68 : x - Step 2: Convert to fraction form
667,229.67/920,778.84 = 361,309.68/x - Step 3: Cross multiply
667,229.67x = 920,778.84 × 361,309.68 - Step 4: Simplify right side
667,229.67x = 332,686,308,031.17 - Step 5: Solve for x
x = 332,686,308,031.17/667,229.67 - Step 6: Final answer
x = 498,608.38
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1.5x scale
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.