Finding the Fourth Proportional to 2,971,542.12, 4,459,083.90 and 1,078,431.12
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Solution
The fourth proportional to 2,971,542.12, 4,459,083.90 and 1,078,431.12 is: 1,618,289.31
Step by Step Solution
- Step 1: Write the proportion equation
2,971,542.12 : 4,459,083.90 = 1,078,431.12 : x - Step 2: Convert to fraction form
2,971,542.12/4,459,083.90 = 1,078,431.12/x - Step 3: Cross multiply
2,971,542.12x = 4,459,083.90 × 1,078,431.12 - Step 4: Simplify right side
2,971,542.12x = 4,808,814,844,450.97 - Step 5: Solve for x
x = 4,808,814,844,450.97/2,971,542.12 - Step 6: Final answer
x = 1,618,289.31
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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.