Finding the Fourth Proportional to 2,556,781.78, 3,830,226.91 and 2,141,520.70
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Solution
The fourth proportional to 2,556,781.78, 3,830,226.91 and 2,141,520.70 is: 3,208,138.56
Step by Step Solution
- Step 1: Write the proportion equation
2,556,781.78 : 3,830,226.91 = 2,141,520.70 : x - Step 2: Convert to fraction form
2,556,781.78/3,830,226.91 = 2,141,520.70/x - Step 3: Cross multiply
2,556,781.78x = 3,830,226.91 × 2,141,520.70 - Step 4: Simplify right side
2,556,781.78x = 8,202,510,198,532.67 - Step 5: Solve for x
x = 8,202,510,198,532.67/2,556,781.78 - Step 6: Final answer
x = 3,208,138.56
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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.