Finding the Fourth Proportional to 1,393,083.78, 2,089,270.35 and 433,351.68
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Solution
The fourth proportional to 1,393,083.78, 2,089,270.35 and 433,351.68 is: 649,916.99
Step by Step Solution
- Step 1: Write the proportion equation
1,393,083.78 : 2,089,270.35 = 433,351.68 : x - Step 2: Convert to fraction form
1,393,083.78/2,089,270.35 = 433,351.68/x - Step 3: Cross multiply
1,393,083.78x = 2,089,270.35 × 433,351.68 - Step 4: Simplify right side
1,393,083.78x = 905,388,816,146.69 - Step 5: Solve for x
x = 905,388,816,146.69/1,393,083.78 - Step 6: Final answer
x = 649,916.99
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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.