Finding the Fourth Proportional to 1,138,886, 1,571,526.24 and 629,519.12
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Solution
The fourth proportional to 1,138,886, 1,571,526.24 and 629,519.12 is: 868,660.97
Step by Step Solution
- Step 1: Write the proportion equation
1,138,886 : 1,571,526.24 = 629,519.12 : x - Step 2: Convert to fraction form
1,138,886/1,571,526.24 = 629,519.12/x - Step 3: Cross multiply
1,138,886x = 1,571,526.24 × 629,519.12 - Step 4: Simplify right side
1,138,886x = 989,305,815,661.71 - Step 5: Solve for x
x = 989,305,815,661.71/1,138,886 - Step 6: Final answer
x = 868,660.97
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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.