Finding the Fourth Proportional to 1,997,707.79, 2,756,977.49 and 1,126,620.43
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Solution
The fourth proportional to 1,997,707.79, 2,756,977.49 and 1,126,620.43 is: 1,554,815.56
Step by Step Solution
- Step 1: Write the proportion equation
1,997,707.79 : 2,756,977.49 = 1,126,620.43 : x - Step 2: Convert to fraction form
1,997,707.79/2,756,977.49 = 1,126,620.43/x - Step 3: Cross multiply
1,997,707.79x = 2,756,977.49 × 1,126,620.43 - Step 4: Simplify right side
1,997,707.79x = 3,106,067,161,208.23 - Step 5: Solve for x
x = 3,106,067,161,208.23/1,997,707.79 - Step 6: Final answer
x = 1,554,815.56
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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.