Finding the Fourth Proportional to 411,859.23, 568,072.68 and 377,977.17
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Solution
The fourth proportional to 411,859.23, 568,072.68 and 377,977.17 is: 521,339.55
Step by Step Solution
- Step 1: Write the proportion equation
411,859.23 : 568,072.68 = 377,977.17 : x - Step 2: Convert to fraction form
411,859.23/568,072.68 = 377,977.17/x - Step 3: Cross multiply
411,859.23x = 568,072.68 × 377,977.17 - Step 4: Simplify right side
411,859.23x = 214,718,503,940.72 - Step 5: Solve for x
x = 214,718,503,940.72/411,859.23 - Step 6: Final answer
x = 521,339.55
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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.