Finding the Fourth Proportional to 1,214,698.90, 1,821,861.49 and 405,097.54
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Solution
The fourth proportional to 1,214,698.90, 1,821,861.49 and 405,097.54 is: 607,583.99
Step by Step Solution
- Step 1: Write the proportion equation
1,214,698.90 : 1,821,861.49 = 405,097.54 : x - Step 2: Convert to fraction form
1,214,698.90/1,821,861.49 = 405,097.54/x - Step 3: Cross multiply
1,214,698.90x = 1,821,861.49 × 405,097.54 - Step 4: Simplify right side
1,214,698.90x = 738,031,607,819.74 - Step 5: Solve for x
x = 738,031,607,819.74/1,214,698.90 - Step 6: Final answer
x = 607,583.99
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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.