Finding the Fourth Proportional to 1,605,821.44, 2,215,873.92 and 926,976.64
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Solution
The fourth proportional to 1,605,821.44, 2,215,873.92 and 926,976.64 is: 1,279,135.59
Step by Step Solution
- Step 1: Write the proportion equation
1,605,821.44 : 2,215,873.92 = 926,976.64 : x - Step 2: Convert to fraction form
1,605,821.44/2,215,873.92 = 926,976.64/x - Step 3: Cross multiply
1,605,821.44x = 2,215,873.92 × 926,976.64 - Step 4: Simplify right side
1,605,821.44x = 2,054,063,361,025.23 - Step 5: Solve for x
x = 2,054,063,361,025.23/1,605,821.44 - Step 6: Final answer
x = 1,279,135.59
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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.