Finding the Fourth Proportional to 738,505.34, 1,107,315.10 and 338,645.19
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Solution
The fourth proportional to 738,505.34, 1,107,315.10 and 338,645.19 is: 507,764.69
Step by Step Solution
- Step 1: Write the proportion equation
738,505.34 : 1,107,315.10 = 338,645.19 : x - Step 2: Convert to fraction form
738,505.34/1,107,315.10 = 338,645.19/x - Step 3: Cross multiply
738,505.34x = 1,107,315.10 × 338,645.19 - Step 4: Simplify right side
738,505.34x = 374,986,932,429.37 - Step 5: Solve for x
x = 374,986,932,429.37/738,505.34 - Step 6: Final answer
x = 507,764.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.