Finding the Fourth Proportional to 3,419,114.80, 5,128,672.20 and 2,621,953.30
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Solution
The fourth proportional to 3,419,114.80, 5,128,672.20 and 2,621,953.30 is: 3,932,929.95
Step by Step Solution
- Step 1: Write the proportion equation
3,419,114.80 : 5,128,672.20 = 2,621,953.30 : x - Step 2: Convert to fraction form
3,419,114.80/5,128,672.20 = 2,621,953.30/x - Step 3: Cross multiply
3,419,114.80x = 5,128,672.20 × 2,621,953.30 - Step 4: Simplify right side
3,419,114.80x = 13,447,138,999,408.26 - Step 5: Solve for x
x = 13,447,138,999,408.26/3,419,114.80 - Step 6: Final answer
x = 3,932,929.95
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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.