Finding the Fourth Proportional to 405,272.17, 607,907.44 and 380,609.99
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Solution
The fourth proportional to 405,272.17, 607,907.44 and 380,609.99 is: 570,914.22
Step by Step Solution
- Step 1: Write the proportion equation
405,272.17 : 607,907.44 = 380,609.99 : x - Step 2: Convert to fraction form
405,272.17/607,907.44 = 380,609.99/x - Step 3: Cross multiply
405,272.17x = 607,907.44 × 380,609.99 - Step 4: Simplify right side
405,272.17x = 231,375,644,910.44 - Step 5: Solve for x
x = 231,375,644,910.44/405,272.17 - Step 6: Final answer
x = 570,914.22
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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.