Finding the Fourth Proportional to 1,577,402.09, 2,176,917.49 and 915,249.57
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Solution
The fourth proportional to 1,577,402.09, 2,176,917.49 and 915,249.57 is: 1,263,103.94
Step by Step Solution
- Step 1: Write the proportion equation
1,577,402.09 : 2,176,917.49 = 915,249.57 : x - Step 2: Convert to fraction form
1,577,402.09/2,176,917.49 = 915,249.57/x - Step 3: Cross multiply
1,577,402.09x = 2,176,917.49 × 915,249.57 - Step 4: Simplify right side
1,577,402.09x = 1,992,422,796,647.98 - Step 5: Solve for x
x = 1,992,422,796,647.98/1,577,402.09 - Step 6: Final answer
x = 1,263,103.94
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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.