Finding the Fourth Proportional to 389,903.34, 583,524.27 and 326,794.70
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Solution
The fourth proportional to 389,903.34, 583,524.27 and 326,794.70 is: 489,076.70
Step by Step Solution
- Step 1: Write the proportion equation
389,903.34 : 583,524.27 = 326,794.70 : x - Step 2: Convert to fraction form
389,903.34/583,524.27 = 326,794.70/x - Step 3: Cross multiply
389,903.34x = 583,524.27 × 326,794.70 - Step 4: Simplify right side
389,903.34x = 190,692,638,757.37 - Step 5: Solve for x
x = 190,692,638,757.37/389,903.34 - Step 6: Final answer
x = 489,076.70
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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.