Finding the Fourth Proportional to 685,202.83, 945,558.52 and 394,814.99
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Solution
The fourth proportional to 685,202.83, 945,558.52 and 394,814.99 is: 544,832.37
Step by Step Solution
- Step 1: Write the proportion equation
685,202.83 : 945,558.52 = 394,814.99 : x - Step 2: Convert to fraction form
685,202.83/945,558.52 = 394,814.99/x - Step 3: Cross multiply
685,202.83x = 945,558.52 × 394,814.99 - Step 4: Simplify right side
685,202.83x = 373,320,678,995.07 - Step 5: Solve for x
x = 373,320,678,995.07/685,202.83 - Step 6: Final answer
x = 544,832.37
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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.