Finding the Fourth Proportional to 1,212,645.20, 1,673,568.66 and 906,189.44
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Solution
The fourth proportional to 1,212,645.20, 1,673,568.66 and 906,189.44 is: 1,250,629.82
Step by Step Solution
- Step 1: Write the proportion equation
1,212,645.20 : 1,673,568.66 = 906,189.44 : x - Step 2: Convert to fraction form
1,212,645.20/1,673,568.66 = 906,189.44/x - Step 3: Cross multiply
1,212,645.20x = 1,673,568.66 × 906,189.44 - Step 4: Simplify right side
1,212,645.20x = 1,516,570,246,806.95 - Step 5: Solve for x
x = 1,516,570,246,806.95/1,212,645.20 - Step 6: Final answer
x = 1,250,629.82
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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.