Finding the Fourth Proportional to 2,639,709.44, 3,642,801.36 and 1,432,485.44
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Solution
The fourth proportional to 2,639,709.44, 3,642,801.36 and 1,432,485.44 is: 1,976,831.17
Step by Step Solution
- Step 1: Write the proportion equation
2,639,709.44 : 3,642,801.36 = 1,432,485.44 : x - Step 2: Convert to fraction form
2,639,709.44/3,642,801.36 = 1,432,485.44/x - Step 3: Cross multiply
2,639,709.44x = 3,642,801.36 × 1,432,485.44 - Step 4: Simplify right side
2,639,709.44x = 5,218,259,909,012.20 - Step 5: Solve for x
x = 5,218,259,909,012.20/2,639,709.44 - Step 6: Final answer
x = 1,976,831.17
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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.