Finding the Fourth Proportional to 1,761,659.09, 2,431,048.19 and 1,036,553.77
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Solution
The fourth proportional to 1,761,659.09, 2,431,048.19 and 1,036,553.77 is: 1,430,419.87
Step by Step Solution
- Step 1: Write the proportion equation
1,761,659.09 : 2,431,048.19 = 1,036,553.77 : x - Step 2: Convert to fraction form
1,761,659.09/2,431,048.19 = 1,036,553.77/x - Step 3: Cross multiply
1,761,659.09x = 2,431,048.19 × 1,036,553.77 - Step 4: Simplify right side
1,761,659.09x = 2,519,912,168,139.29 - Step 5: Solve for x
x = 2,519,912,168,139.29/1,761,659.09 - Step 6: Final answer
x = 1,430,419.87
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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.