Finding the Fourth Proportional to 1,998,860.99, 2,758,431.80 and 1,093,442.99
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Solution
The fourth proportional to 1,998,860.99, 2,758,431.80 and 1,093,442.99 is: 1,508,953.31
Step by Step Solution
- Step 1: Write the proportion equation
1,998,860.99 : 2,758,431.80 = 1,093,442.99 : x - Step 2: Convert to fraction form
1,998,860.99/2,758,431.80 = 1,093,442.99/x - Step 3: Cross multiply
1,998,860.99x = 2,758,431.80 × 1,093,442.99 - Step 4: Simplify right side
1,998,860.99x = 3,016,187,909,635.87 - Step 5: Solve for x
x = 3,016,187,909,635.87/1,998,860.99 - Step 6: Final answer
x = 1,508,953.31
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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.