Finding the Fourth Proportional to 987,394.26, 1,481,091.40 and 239,440.26
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Solution
The fourth proportional to 987,394.26, 1,481,091.40 and 239,440.26 is: 359,160.39
Step by Step Solution
- Step 1: Write the proportion equation
987,394.26 : 1,481,091.40 = 239,440.26 : x - Step 2: Convert to fraction form
987,394.26/1,481,091.40 = 239,440.26/x - Step 3: Cross multiply
987,394.26x = 1,481,091.40 × 239,440.26 - Step 4: Simplify right side
987,394.26x = 354,632,909,899.76 - Step 5: Solve for x
x = 354,632,909,899.76/987,394.26 - Step 6: Final answer
x = 359,160.39
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1.5x scale
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.