Finding the Fourth Proportional to 1,292,322.16, 1,783,099.92 and 1,086,373.84
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Solution
The fourth proportional to 1,292,322.16, 1,783,099.92 and 1,086,373.84 is: 1,498,939.79
Step by Step Solution
- Step 1: Write the proportion equation
1,292,322.16 : 1,783,099.92 = 1,086,373.84 : x - Step 2: Convert to fraction form
1,292,322.16/1,783,099.92 = 1,086,373.84/x - Step 3: Cross multiply
1,292,322.16x = 1,783,099.92 × 1,086,373.84 - Step 4: Simplify right side
1,292,322.16x = 1,937,113,107,194.09 - Step 5: Solve for x
x = 1,937,113,107,194.09/1,292,322.16 - Step 6: Final answer
x = 1,498,939.79
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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.