Finding the Fourth Proportional to 1,121,682.18, 1,682,732.25 and 363,456.03
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Solution
The fourth proportional to 1,121,682.18, 1,682,732.25 and 363,456.03 is: 545,251.76
Step by Step Solution
- Step 1: Write the proportion equation
1,121,682.18 : 1,682,732.25 = 363,456.03 : x - Step 2: Convert to fraction form
1,121,682.18/1,682,732.25 = 363,456.03/x - Step 3: Cross multiply
1,121,682.18x = 1,682,732.25 × 363,456.03 - Step 4: Simplify right side
1,121,682.18x = 611,599,183,137.97 - Step 5: Solve for x
x = 611,599,183,137.97/1,121,682.18 - Step 6: Final answer
x = 545,251.76
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.