Finding the Fourth Proportional to 1,324,961.01, 1,987,162.87 and 426,483.09
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Solution
The fourth proportional to 1,324,961.01, 1,987,162.87 and 426,483.09 is: 639,634.94
Step by Step Solution
- Step 1: Write the proportion equation
1,324,961.01 : 1,987,162.87 = 426,483.09 : x - Step 2: Convert to fraction form
1,324,961.01/1,987,162.87 = 426,483.09/x - Step 3: Cross multiply
1,324,961.01x = 1,987,162.87 × 426,483.09 - Step 4: Simplify right side
1,324,961.01x = 847,491,361,130.87 - Step 5: Solve for x
x = 847,491,361,130.87/1,324,961.01 - Step 6: Final answer
x = 639,634.94
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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.