Finding the Fourth Proportional to 324,658.20, 486,987.30 and 274,891.80
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Solution
The fourth proportional to 324,658.20, 486,987.30 and 274,891.80 is: 412,337.70
Step by Step Solution
- Step 1: Write the proportion equation
324,658.20 : 486,987.30 = 274,891.80 : x - Step 2: Convert to fraction form
324,658.20/486,987.30 = 274,891.80/x - Step 3: Cross multiply
324,658.20x = 486,987.30 × 274,891.80 - Step 4: Simplify right side
324,658.20x = 133,868,815,474.14 - Step 5: Solve for x
x = 133,868,815,474.14/324,658.20 - Step 6: Final answer
x = 412,337.70
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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.