Finding the Fourth Proportional to 2,107,828.62, 3,161,830.41 and 611,920.62
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Solution
The fourth proportional to 2,107,828.62, 3,161,830.41 and 611,920.62 is: 917,906.33
Step by Step Solution
- Step 1: Write the proportion equation
2,107,828.62 : 3,161,830.41 = 611,920.62 : x - Step 2: Convert to fraction form
2,107,828.62/3,161,830.41 = 611,920.62/x - Step 3: Cross multiply
2,107,828.62x = 3,161,830.41 × 611,920.62 - Step 4: Simplify right side
2,107,828.62x = 1,934,789,224,822.05 - Step 5: Solve for x
x = 1,934,789,224,822.05/2,107,828.62 - Step 6: Final answer
x = 917,906.33
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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.