Finding the Fourth Proportional to 522,115.39, 720,649.88 and 320,794.75
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Solution
The fourth proportional to 522,115.39, 720,649.88 and 320,794.75 is: 442,777.02
Step by Step Solution
- Step 1: Write the proportion equation
522,115.39 : 720,649.88 = 320,794.75 : x - Step 2: Convert to fraction form
522,115.39/720,649.88 = 320,794.75/x - Step 3: Cross multiply
522,115.39x = 720,649.88 × 320,794.75 - Step 4: Simplify right side
522,115.39x = 231,180,698,092.13 - Step 5: Solve for x
x = 231,180,698,092.13/522,115.39 - Step 6: Final answer
x = 442,777.02
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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.