Finding the Fourth Proportional to 1,288,171.98, 1,932,257.97 and 489,264.53
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Solution
The fourth proportional to 1,288,171.98, 1,932,257.97 and 489,264.53 is: 733,896.79
Step by Step Solution
- Step 1: Write the proportion equation
1,288,171.98 : 1,932,257.97 = 489,264.53 : x - Step 2: Convert to fraction form
1,288,171.98/1,932,257.97 = 489,264.53/x - Step 3: Cross multiply
1,288,171.98x = 1,932,257.97 × 489,264.53 - Step 4: Simplify right side
1,288,171.98x = 945,385,277,869.51 - Step 5: Solve for x
x = 945,385,277,869.51/1,288,171.98 - Step 6: Final answer
x = 733,896.79
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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.