Finding the Fourth Proportional to 3,718,213.20, 5,577,204.60 and 1,058,821.20
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Solution
The fourth proportional to 3,718,213.20, 5,577,204.60 and 1,058,821.20 is: 1,588,198.99
Step by Step Solution
- Step 1: Write the proportion equation
3,718,213.20 : 5,577,204.60 = 1,058,821.20 : x - Step 2: Convert to fraction form
3,718,213.20/5,577,204.60 = 1,058,821.20/x - Step 3: Cross multiply
3,718,213.20x = 5,577,204.60 × 1,058,821.20 - Step 4: Simplify right side
3,718,213.20x = 5,905,262,467,217.52 - Step 5: Solve for x
x = 5,905,262,467,217.52/3,718,213.20 - Step 6: Final answer
x = 1,588,198.99
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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.