Finding the Fourth Proportional to 394,224.30, 553,313.70 and 394,224.30
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Solution
The fourth proportional to 394,224.30, 553,313.70 and 394,224.30 is: 553,313.70
Step by Step Solution
- Step 1: Write the proportion equation
394,224.30 : 553,313.70 = 394,224.30 : x - Step 2: Convert to fraction form
394,224.30/553,313.70 = 394,224.30/x - Step 3: Cross multiply
394,224.30x = 553,313.70 × 394,224.30 - Step 4: Simplify right side
394,224.30x = 218,129,706,062.91 - Step 5: Solve for x
x = 218,129,706,062.91/394,224.30 - Step 6: Final answer
x = 553,313.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.