Finding the Fourth Proportional to 3,230,771.64, 4,458,495.14 and 1,780,520.12
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Solution
The fourth proportional to 3,230,771.64, 4,458,495.14 and 1,780,520.12 is: 2,457,134.45
Step by Step Solution
- Step 1: Write the proportion equation
3,230,771.64 : 4,458,495.14 = 1,780,520.12 : x - Step 2: Convert to fraction form
3,230,771.64/4,458,495.14 = 1,780,520.12/x - Step 3: Cross multiply
3,230,771.64x = 4,458,495.14 × 1,780,520.12 - Step 4: Simplify right side
3,230,771.64x = 7,938,440,301,692.22 - Step 5: Solve for x
x = 7,938,440,301,692.22/3,230,771.64 - Step 6: Final answer
x = 2,457,134.45
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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.