Finding the Fourth Proportional to 1,412,571.42, 1,949,405.16 and 767,989.62
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Solution
The fourth proportional to 1,412,571.42, 1,949,405.16 and 767,989.62 is: 1,059,856.45
Step by Step Solution
- Step 1: Write the proportion equation
1,412,571.42 : 1,949,405.16 = 767,989.62 : x - Step 2: Convert to fraction form
1,412,571.42/1,949,405.16 = 767,989.62/x - Step 3: Cross multiply
1,412,571.42x = 1,949,405.16 × 767,989.62 - Step 4: Simplify right side
1,412,571.42x = 1,497,122,928,054.44 - Step 5: Solve for x
x = 1,497,122,928,054.44/1,412,571.42 - Step 6: Final answer
x = 1,059,856.45
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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.