Finding the Fourth Proportional to 1,611,431.80, 2,414,231.70 and 768,124.60
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Solution
The fourth proportional to 1,611,431.80, 2,414,231.70 and 768,124.60 is: 1,150,796.92
Step by Step Solution
- Step 1: Write the proportion equation
1,611,431.80 : 2,414,231.70 = 768,124.60 : x - Step 2: Convert to fraction form
1,611,431.80/2,414,231.70 = 768,124.60/x - Step 3: Cross multiply
1,611,431.80x = 2,414,231.70 × 768,124.60 - Step 4: Simplify right side
1,611,431.80x = 1,854,430,758,869.82 - Step 5: Solve for x
x = 1,854,430,758,869.82/1,611,431.80 - Step 6: Final answer
x = 1,150,796.92
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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.