Finding the Fourth Proportional to 892,668.98, 1,231,911.57 and 490,260.98
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Solution
The fourth proportional to 892,668.98, 1,231,911.57 and 490,260.98 is: 676,575.74
Step by Step Solution
- Step 1: Write the proportion equation
892,668.98 : 1,231,911.57 = 490,260.98 : x - Step 2: Convert to fraction form
892,668.98/1,231,911.57 = 490,260.98/x - Step 3: Cross multiply
892,668.98x = 1,231,911.57 × 490,260.98 - Step 4: Simplify right side
892,668.98x = 603,958,173,581.54 - Step 5: Solve for x
x = 603,958,173,581.54/892,668.98 - Step 6: Final answer
x = 676,575.74
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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.