Finding the Fourth Proportional to 1,321,120.92, 1,823,150.36 and 777,277.20
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Solution
The fourth proportional to 1,321,120.92, 1,823,150.36 and 777,277.20 is: 1,072,644.59
Step by Step Solution
- Step 1: Write the proportion equation
1,321,120.92 : 1,823,150.36 = 777,277.20 : x - Step 2: Convert to fraction form
1,321,120.92/1,823,150.36 = 777,277.20/x - Step 3: Cross multiply
1,321,120.92x = 1,823,150.36 × 777,277.20 - Step 4: Simplify right side
1,321,120.92x = 1,417,093,206,999.79 - Step 5: Solve for x
x = 1,417,093,206,999.79/1,321,120.92 - Step 6: Final answer
x = 1,072,644.59
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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.