Finding the Fourth Proportional to 406,608.42, 561,134.09 and 245,431.99
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Solution
The fourth proportional to 406,608.42, 561,134.09 and 245,431.99 is: 338,704.88
Step by Step Solution
- Step 1: Write the proportion equation
406,608.42 : 561,134.09 = 245,431.99 : x - Step 2: Convert to fraction form
406,608.42/561,134.09 = 245,431.99/x - Step 3: Cross multiply
406,608.42x = 561,134.09 × 245,431.99 - Step 4: Simplify right side
406,608.42x = 137,720,256,365.54 - Step 5: Solve for x
x = 137,720,256,365.54/406,608.42 - Step 6: Final answer
x = 338,704.88
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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.