Finding the Fourth Proportional to 422,524.80, 634,132.80 and 408,700.80
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Solution
The fourth proportional to 422,524.80, 634,132.80 and 408,700.80 is: 613,385.49
Step by Step Solution
- Step 1: Write the proportion equation
422,524.80 : 634,132.80 = 408,700.80 : x - Step 2: Convert to fraction form
422,524.80/634,132.80 = 408,700.80/x - Step 3: Cross multiply
422,524.80x = 634,132.80 × 408,700.80 - Step 4: Simplify right side
422,524.80x = 259,170,582,666.24 - Step 5: Solve for x
x = 259,170,582,666.24/422,524.80 - Step 6: Final answer
x = 613,385.49
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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.