Finding the Fourth Proportional to 819,201.38, 1,130,982.84 and 728,306.28
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Solution
The fourth proportional to 819,201.38, 1,130,982.84 and 728,306.28 is: 1,005,493.80
Step by Step Solution
- Step 1: Write the proportion equation
819,201.38 : 1,130,982.84 = 728,306.28 : x - Step 2: Convert to fraction form
819,201.38/1,130,982.84 = 728,306.28/x - Step 3: Cross multiply
819,201.38x = 1,130,982.84 × 728,306.28 - Step 4: Simplify right side
819,201.38x = 823,701,904,944.24 - Step 5: Solve for x
x = 823,701,904,944.24/819,201.38 - Step 6: Final answer
x = 1,005,493.80
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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.