Finding the Fourth Proportional to 326,544.10, 489,787.35 and 89,865.70
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Solution
The fourth proportional to 326,544.10, 489,787.35 and 89,865.70 is: 134,790.62
Step by Step Solution
- Step 1: Write the proportion equation
326,544.10 : 489,787.35 = 89,865.70 : x - Step 2: Convert to fraction form
326,544.10/489,787.35 = 89,865.70/x - Step 3: Cross multiply
326,544.10x = 489,787.35 × 89,865.70 - Step 4: Simplify right side
326,544.10x = 44,015,083,058.90 - Step 5: Solve for x
x = 44,015,083,058.90/326,544.10 - Step 6: Final answer
x = 134,790.62
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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.