Finding the Fourth Proportional to 512,206.80, 768,310.20 and 246,486.30
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Solution
The fourth proportional to 512,206.80, 768,310.20 and 246,486.30 is: 369,729.45
Step by Step Solution
- Step 1: Write the proportion equation
512,206.80 : 768,310.20 = 246,486.30 : x - Step 2: Convert to fraction form
512,206.80/768,310.20 = 246,486.30/x - Step 3: Cross multiply
512,206.80x = 768,310.20 × 246,486.30 - Step 4: Simplify right side
512,206.80x = 189,377,938,450.26 - Step 5: Solve for x
x = 189,377,938,450.26/512,206.80 - Step 6: Final answer
x = 369,729.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.