Finding the Fourth Proportional to 1,330,028.22, 1,995,322.92 and 431,400.18
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Solution
The fourth proportional to 1,330,028.22, 1,995,322.92 and 431,400.18 is: 647,191.28
Step by Step Solution
- Step 1: Write the proportion equation
1,330,028.22 : 1,995,322.92 = 431,400.18 : x - Step 2: Convert to fraction form
1,330,028.22/1,995,322.92 = 431,400.18/x - Step 3: Cross multiply
1,330,028.22x = 1,995,322.92 × 431,400.18 - Step 4: Simplify right side
1,330,028.22x = 860,782,666,846.13 - Step 5: Solve for x
x = 860,782,666,846.13/1,330,028.22 - Step 6: Final answer
x = 647,191.28
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.