Finding the Fourth Proportional to 674,672.70, 1,012,122.45 and 201,405.90
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Solution
The fourth proportional to 674,672.70, 1,012,122.45 and 201,405.90 is: 302,142.70
Step by Step Solution
- Step 1: Write the proportion equation
674,672.70 : 1,012,122.45 = 201,405.90 : x - Step 2: Convert to fraction form
674,672.70/1,012,122.45 = 201,405.90/x - Step 3: Cross multiply
674,672.70x = 1,012,122.45 × 201,405.90 - Step 4: Simplify right side
674,672.70x = 203,847,432,952.46 - Step 5: Solve for x
x = 203,847,432,952.46/674,672.70 - Step 6: Final answer
x = 302,142.70
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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.