Finding the Fourth Proportional to 1,245,618.12, 1,718,945.18 and 701,928.56
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Solution
The fourth proportional to 1,245,618.12, 1,718,945.18 and 701,928.56 is: 968,656.99
Step by Step Solution
- Step 1: Write the proportion equation
1,245,618.12 : 1,718,945.18 = 701,928.56 : x - Step 2: Convert to fraction form
1,245,618.12/1,718,945.18 = 701,928.56/x - Step 3: Cross multiply
1,245,618.12x = 1,718,945.18 × 701,928.56 - Step 4: Simplify right side
1,245,618.12x = 1,206,576,702,811.97 - Step 5: Solve for x
x = 1,206,576,702,811.97/1,245,618.12 - Step 6: Final answer
x = 968,656.99
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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.