Finding the Fourth Proportional to 2,658,850.90, 3,987,439.79 and 861,317.33
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Solution
The fourth proportional to 2,658,850.90, 3,987,439.79 and 861,317.33 is: 1,291,704.99
Step by Step Solution
- Step 1: Write the proportion equation
2,658,850.90 : 3,987,439.79 = 861,317.33 : x - Step 2: Convert to fraction form
2,658,850.90/3,987,439.79 = 861,317.33/x - Step 3: Cross multiply
2,658,850.90x = 3,987,439.79 × 861,317.33 - Step 4: Simplify right side
2,658,850.90x = 3,434,450,969,214.78 - Step 5: Solve for x
x = 3,434,450,969,214.78/2,658,850.90 - Step 6: Final answer
x = 1,291,704.99
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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.