Finding the Fourth Proportional to 3,851,729.80, 5,777,594.70 and 2,731,985.80
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Solution
The fourth proportional to 3,851,729.80, 5,777,594.70 and 2,731,985.80 is: 4,097,978.70
Step by Step Solution
- Step 1: Write the proportion equation
3,851,729.80 : 5,777,594.70 = 2,731,985.80 : x - Step 2: Convert to fraction form
3,851,729.80/5,777,594.70 = 2,731,985.80/x - Step 3: Cross multiply
3,851,729.80x = 5,777,594.70 × 2,731,985.80 - Step 4: Simplify right side
3,851,729.80x = 15,784,306,678,555.26 - Step 5: Solve for x
x = 15,784,306,678,555.26/3,851,729.80 - Step 6: Final answer
x = 4,097,978.70
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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.