Finding the Fourth Proportional to 919,305.54, 1,378,958.34 and 288,270.18
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Solution
The fourth proportional to 919,305.54, 1,378,958.34 and 288,270.18 is: 432,405.28
Step by Step Solution
- Step 1: Write the proportion equation
919,305.54 : 1,378,958.34 = 288,270.18 : x - Step 2: Convert to fraction form
919,305.54/1,378,958.34 = 288,270.18/x - Step 3: Cross multiply
919,305.54x = 1,378,958.34 × 288,270.18 - Step 4: Simplify right side
919,305.54x = 397,512,568,884.30 - Step 5: Solve for x
x = 397,512,568,884.30/919,305.54 - Step 6: Final answer
x = 432,405.28
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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.