Finding the Fourth Proportional to 1,291,122.67, 1,936,792.41 and 392,572.21
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Solution
The fourth proportional to 1,291,122.67, 1,936,792.41 and 392,572.21 is: 588,891.28
Step by Step Solution
- Step 1: Write the proportion equation
1,291,122.67 : 1,936,792.41 = 392,572.21 : x - Step 2: Convert to fraction form
1,291,122.67/1,936,792.41 = 392,572.21/x - Step 3: Cross multiply
1,291,122.67x = 1,936,792.41 × 392,572.21 - Step 4: Simplify right side
1,291,122.67x = 760,330,876,704.93 - Step 5: Solve for x
x = 760,330,876,704.93/1,291,122.67 - Step 6: Final answer
x = 588,891.28
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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.