Finding the Fourth Proportional to 412,756.14, 568,832.18 and 321,968.28
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Solution
The fourth proportional to 412,756.14, 568,832.18 and 321,968.28 is: 443,714.58
Step by Step Solution
- Step 1: Write the proportion equation
412,756.14 : 568,832.18 = 321,968.28 : x - Step 2: Convert to fraction form
412,756.14/568,832.18 = 321,968.28/x - Step 3: Cross multiply
412,756.14x = 568,832.18 × 321,968.28 - Step 4: Simplify right side
412,756.14x = 183,145,918,603.25 - Step 5: Solve for x
x = 183,145,918,603.25/412,756.14 - Step 6: Final answer
x = 443,714.58
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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.