Finding the Fourth Proportional to 813,745.80, 1,220,618.70 and 222,769.80
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Solution
The fourth proportional to 813,745.80, 1,220,618.70 and 222,769.80 is: 334,154.70
Step by Step Solution
- Step 1: Write the proportion equation
813,745.80 : 1,220,618.70 = 222,769.80 : x - Step 2: Convert to fraction form
813,745.80/1,220,618.70 = 222,769.80/x - Step 3: Cross multiply
813,745.80x = 1,220,618.70 × 222,769.80 - Step 4: Simplify right side
813,745.80x = 271,916,983,675.26 - Step 5: Solve for x
x = 271,916,983,675.26/813,745.80 - Step 6: Final answer
x = 334,154.70
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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.