Finding the Fourth Proportional to 394,277.83, 543,536.93 and 280,903.75
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Solution
The fourth proportional to 394,277.83, 543,536.93 and 280,903.75 is: 387,243.59
Step by Step Solution
- Step 1: Write the proportion equation
394,277.83 : 543,536.93 = 280,903.75 : x - Step 2: Convert to fraction form
394,277.83/543,536.93 = 280,903.75/x - Step 3: Cross multiply
394,277.83x = 543,536.93 × 280,903.75 - Step 4: Simplify right side
394,277.83x = 152,681,561,243.91 - Step 5: Solve for x
x = 152,681,561,243.91/394,277.83 - Step 6: Final answer
x = 387,243.59
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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.