Finding the Fourth Proportional to 744,315.06, 1,115,967.21 and 378,678
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Solution
The fourth proportional to 744,315.06, 1,115,967.21 and 378,678 is: 567,759.88
Step by Step Solution
- Step 1: Write the proportion equation
744,315.06 : 1,115,967.21 = 378,678 : x - Step 2: Convert to fraction form
744,315.06/1,115,967.21 = 378,678/x - Step 3: Cross multiply
744,315.06x = 1,115,967.21 × 378,678 - Step 4: Simplify right side
744,315.06x = 422,592,231,148.38 - Step 5: Solve for x
x = 422,592,231,148.38/744,315.06 - Step 6: Final answer
x = 567,759.88
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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.