Finding the Fourth Proportional to 513,211.20, 768,933.09 and 363,204.60
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Solution
The fourth proportional to 513,211.20, 768,933.09 and 363,204.60 is: 544,181.49
Step by Step Solution
- Step 1: Write the proportion equation
513,211.20 : 768,933.09 = 363,204.60 : x - Step 2: Convert to fraction form
513,211.20/768,933.09 = 363,204.60/x - Step 3: Cross multiply
513,211.20x = 768,933.09 × 363,204.60 - Step 4: Simplify right side
513,211.20x = 279,280,035,380.21 - Step 5: Solve for x
x = 279,280,035,380.21/513,211.20 - Step 6: Final answer
x = 544,181.49
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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.