Finding the Fourth Proportional to 1,115,212.37, 1,538,974.10 and 605,911.10
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Solution
The fourth proportional to 1,115,212.37, 1,538,974.10 and 605,911.10 is: 836,147.01
Step by Step Solution
- Step 1: Write the proportion equation
1,115,212.37 : 1,538,974.10 = 605,911.10 : x - Step 2: Convert to fraction form
1,115,212.37/1,538,974.10 = 605,911.10/x - Step 3: Cross multiply
1,115,212.37x = 1,538,974.10 × 605,911.10 - Step 4: Simplify right side
1,115,212.37x = 932,481,486,772.96 - Step 5: Solve for x
x = 932,481,486,772.96/1,115,212.37 - Step 6: Final answer
x = 836,147.01
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1.5x scale
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.