Finding the Fourth Proportional to 3,720,538.74, 5,581,604.97 and 1,291,767.92
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Solution
The fourth proportional to 3,720,538.74, 5,581,604.97 and 1,291,767.92 is: 1,937,928.54
Step by Step Solution
- Step 1: Write the proportion equation
3,720,538.74 : 5,581,604.97 = 1,291,767.92 : x - Step 2: Convert to fraction form
3,720,538.74/5,581,604.97 = 1,291,767.92/x - Step 3: Cross multiply
3,720,538.74x = 5,581,604.97 × 1,291,767.92 - Step 4: Simplify right side
3,720,538.74x = 7,210,138,214,450.54 - Step 5: Solve for x
x = 7,210,138,214,450.54/3,720,538.74 - Step 6: Final answer
x = 1,937,928.54
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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.