Finding the Fourth Proportional to 3,171,310.79, 4,376,440.97 and 1,721,018.75
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Solution
The fourth proportional to 3,171,310.79, 4,376,440.97 and 1,721,018.75 is: 2,375,023.28
Step by Step Solution
- Step 1: Write the proportion equation
3,171,310.79 : 4,376,440.97 = 1,721,018.75 : x - Step 2: Convert to fraction form
3,171,310.79/4,376,440.97 = 1,721,018.75/x - Step 3: Cross multiply
3,171,310.79x = 4,376,440.97 × 1,721,018.75 - Step 4: Simplify right side
3,171,310.79x = 7,531,936,943,604.71 - Step 5: Solve for x
x = 7,531,936,943,604.71/3,171,310.79 - Step 6: Final answer
x = 2,375,023.28
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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.