Finding the Fourth Proportional to 3,828,554.68, 5,742,943.38 and 1,431,942.06
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Solution
The fourth proportional to 3,828,554.68, 5,742,943.38 and 1,431,942.06 is: 2,147,954.74
Step by Step Solution
- Step 1: Write the proportion equation
3,828,554.68 : 5,742,943.38 = 1,431,942.06 : x - Step 2: Convert to fraction form
3,828,554.68/5,742,943.38 = 1,431,942.06/x - Step 3: Cross multiply
3,828,554.68x = 5,742,943.38 × 1,431,942.06 - Step 4: Simplify right side
3,828,554.68x = 8,223,562,174,020.56 - Step 5: Solve for x
x = 8,223,562,174,020.56/3,828,554.68 - Step 6: Final answer
x = 2,147,954.74
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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.