Finding the Fourth Proportional to 2,230,706.21, 3,078,394.04 and 1,212,110.96
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Solution
The fourth proportional to 2,230,706.21, 3,078,394.04 and 1,212,110.96 is: 1,672,723.70
Step by Step Solution
- Step 1: Write the proportion equation
2,230,706.21 : 3,078,394.04 = 1,212,110.96 : x - Step 2: Convert to fraction form
2,230,706.21/3,078,394.04 = 1,212,110.96/x - Step 3: Cross multiply
2,230,706.21x = 3,078,394.04 × 1,212,110.96 - Step 4: Simplify right side
2,230,706.21x = 3,731,355,142,720.99 - Step 5: Solve for x
x = 3,731,355,142,720.99/2,230,706.21 - Step 6: Final answer
x = 1,672,723.70
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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.