Finding the Fourth Proportional to 519,720.97, 717,214.94 and 281,256.97
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Solution
The fourth proportional to 519,720.97, 717,214.94 and 281,256.97 is: 388,134.62
Step by Step Solution
- Step 1: Write the proportion equation
519,720.97 : 717,214.94 = 281,256.97 : x - Step 2: Convert to fraction form
519,720.97/717,214.94 = 281,256.97/x - Step 3: Cross multiply
519,720.97x = 717,214.94 × 281,256.97 - Step 4: Simplify right side
519,720.97x = 201,721,699,456.85 - Step 5: Solve for x
x = 201,721,699,456.85/519,720.97 - Step 6: Final answer
x = 388,134.62
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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.