Finding the Fourth Proportional to 512,672.80, 768,778.80 and 197,024.80
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Solution
The fourth proportional to 512,672.80, 768,778.80 and 197,024.80 is: 295,448.66
Step by Step Solution
- Step 1: Write the proportion equation
512,672.80 : 768,778.80 = 197,024.80 : x - Step 2: Convert to fraction form
512,672.80/768,778.80 = 197,024.80/x - Step 3: Cross multiply
512,672.80x = 768,778.80 × 197,024.80 - Step 4: Simplify right side
512,672.80x = 151,468,489,314.24 - Step 5: Solve for x
x = 151,468,489,314.24/512,672.80 - Step 6: Final answer
x = 295,448.66
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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.