Finding the Fourth Proportional to 411,831.21, 568,034.10 and 377,949.09
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Solution
The fourth proportional to 411,831.21, 568,034.10 and 377,949.09 is: 521,300.88
Step by Step Solution
- Step 1: Write the proportion equation
411,831.21 : 568,034.10 = 377,949.09 : x - Step 2: Convert to fraction form
411,831.21/568,034.10 = 377,949.09/x - Step 3: Cross multiply
411,831.21x = 568,034.10 × 377,949.09 - Step 4: Simplify right side
411,831.21x = 214,687,971,183.97 - Step 5: Solve for x
x = 214,687,971,183.97/411,831.21 - Step 6: Final answer
x = 521,300.88
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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.