Finding the Fourth Proportional to 326,416.97, 489,628.19 and 89,772.63
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Solution
The fourth proportional to 326,416.97, 489,628.19 and 89,772.63 is: 134,659.70
Step by Step Solution
- Step 1: Write the proportion equation
326,416.97 : 489,628.19 = 89,772.63 : x - Step 2: Convert to fraction form
326,416.97/489,628.19 = 89,772.63/x - Step 3: Cross multiply
326,416.97x = 489,628.19 × 89,772.63 - Step 4: Simplify right side
326,416.97x = 43,955,209,889.58 - Step 5: Solve for x
x = 43,955,209,889.58/326,416.97 - Step 6: Final answer
x = 134,659.70
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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.