Finding the Fourth Proportional to 1,887,778.68, 2,605,121.22 and 1,028,338.98
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Solution
The fourth proportional to 1,887,778.68, 2,605,121.22 and 1,028,338.98 is: 1,419,100.52
Step by Step Solution
- Step 1: Write the proportion equation
1,887,778.68 : 2,605,121.22 = 1,028,338.98 : x - Step 2: Convert to fraction form
1,887,778.68/2,605,121.22 = 1,028,338.98/x - Step 3: Cross multiply
1,887,778.68x = 2,605,121.22 × 1,028,338.98 - Step 4: Simplify right side
1,887,778.68x = 2,678,947,698,151.16 - Step 5: Solve for x
x = 2,678,947,698,151.16/1,887,778.68 - Step 6: Final answer
x = 1,419,100.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.