Finding the Fourth Proportional to 1,212,972.87, 1,819,266.49 and 403,289.94
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Solution
The fourth proportional to 1,212,972.87, 1,819,266.49 and 403,289.94 is: 604,870.80
Step by Step Solution
- Step 1: Write the proportion equation
1,212,972.87 : 1,819,266.49 = 403,289.94 : x - Step 2: Convert to fraction form
1,212,972.87/1,819,266.49 = 403,289.94/x - Step 3: Cross multiply
1,212,972.87x = 1,819,266.49 × 403,289.94 - Step 4: Simplify right side
1,212,972.87x = 733,691,874,100.22 - Step 5: Solve for x
x = 733,691,874,100.22/1,212,972.87 - Step 6: Final answer
x = 604,870.80
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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.