Finding the Fourth Proportional to 1,129,922.56, 1,694,881.28 and 288,473.60
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Solution
The fourth proportional to 1,129,922.56, 1,694,881.28 and 288,473.60 is: 432,709.75
Step by Step Solution
- Step 1: Write the proportion equation
1,129,922.56 : 1,694,881.28 = 288,473.60 : x - Step 2: Convert to fraction form
1,129,922.56/1,694,881.28 = 288,473.60/x - Step 3: Cross multiply
1,129,922.56x = 1,694,881.28 × 288,473.60 - Step 4: Simplify right side
1,129,922.56x = 488,928,504,414.21 - Step 5: Solve for x
x = 488,928,504,414.21/1,129,922.56 - Step 6: Final answer
x = 432,709.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.