Finding the Fourth Proportional to 404,638.80, 606,277.80 and 320,074.80
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Solution
The fourth proportional to 404,638.80, 606,277.80 and 320,074.80 is: 479,573.99
Step by Step Solution
- Step 1: Write the proportion equation
404,638.80 : 606,277.80 = 320,074.80 : x - Step 2: Convert to fraction form
404,638.80/606,277.80 = 320,074.80/x - Step 3: Cross multiply
404,638.80x = 606,277.80 × 320,074.80 - Step 4: Simplify right side
404,638.80x = 194,054,245,579.44 - Step 5: Solve for x
x = 194,054,245,579.44/404,638.80 - Step 6: Final answer
x = 479,573.99
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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.