Finding the Fourth Proportional to 1,111,708.09, 1,533,593.67 and 703,121.80
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Solution
The fourth proportional to 1,111,708.09, 1,533,593.67 and 703,121.80 is: 969,951.69
Step by Step Solution
- Step 1: Write the proportion equation
1,111,708.09 : 1,533,593.67 = 703,121.80 : x - Step 2: Convert to fraction form
1,111,708.09/1,533,593.67 = 703,121.80/x - Step 3: Cross multiply
1,111,708.09x = 1,533,593.67 × 703,121.80 - Step 4: Simplify right side
1,111,708.09x = 1,078,303,141,719.01 - Step 5: Solve for x
x = 1,078,303,141,719.01/1,111,708.09 - Step 6: Final answer
x = 969,951.69
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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.