Finding the Fourth Proportional to 505,213.53, 697,194.21 and 278,858.49
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Solution
The fourth proportional to 505,213.53, 697,194.21 and 278,858.49 is: 384,824.46
Step by Step Solution
- Step 1: Write the proportion equation
505,213.53 : 697,194.21 = 278,858.49 : x - Step 2: Convert to fraction form
505,213.53/697,194.21 = 278,858.49/x - Step 3: Cross multiply
505,213.53x = 697,194.21 × 278,858.49 - Step 4: Simplify right side
505,213.53x = 194,418,524,637.34 - Step 5: Solve for x
x = 194,418,524,637.34/505,213.53 - Step 6: Final answer
x = 384,824.46
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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.