Finding the Fourth Proportional to 3,621,197.94, 5,430,370.49 and 1,315,145.86
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Solution
The fourth proportional to 3,621,197.94, 5,430,370.49 and 1,315,145.86 is: 1,972,200.74
Step by Step Solution
- Step 1: Write the proportion equation
3,621,197.94 : 5,430,370.49 = 1,315,145.86 : x - Step 2: Convert to fraction form
3,621,197.94/5,430,370.49 = 1,315,145.86/x - Step 3: Cross multiply
3,621,197.94x = 5,430,370.49 × 1,315,145.86 - Step 4: Simplify right side
3,621,197.94x = 7,141,729,268,189.67 - Step 5: Solve for x
x = 7,141,729,268,189.67/3,621,197.94 - Step 6: Final answer
x = 1,972,200.74
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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.