Finding the Fourth Proportional to 3,145,536.12, 4,718,256.77 and 1,415,183.97
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Solution
The fourth proportional to 3,145,536.12, 4,718,256.77 and 1,415,183.97 is: 2,122,754.63
Step by Step Solution
- Step 1: Write the proportion equation
3,145,536.12 : 4,718,256.77 = 1,415,183.97 : x - Step 2: Convert to fraction form
3,145,536.12/4,718,256.77 = 1,415,183.97/x - Step 3: Cross multiply
3,145,536.12x = 4,718,256.77 × 1,415,183.97 - Step 4: Simplify right side
3,145,536.12x = 6,677,201,360,518.99 - Step 5: Solve for x
x = 6,677,201,360,518.99/3,145,536.12 - Step 6: Final answer
x = 2,122,754.63
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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.