Finding the Fourth Proportional to 2,912,199.70, 4,368,299.55 and 2,660,257.30
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Solution
The fourth proportional to 2,912,199.70, 4,368,299.55 and 2,660,257.30 is: 3,990,385.95
Step by Step Solution
- Step 1: Write the proportion equation
2,912,199.70 : 4,368,299.55 = 2,660,257.30 : x - Step 2: Convert to fraction form
2,912,199.70/4,368,299.55 = 2,660,257.30/x - Step 3: Cross multiply
2,912,199.70x = 4,368,299.55 × 2,660,257.30 - Step 4: Simplify right side
2,912,199.70x = 11,620,800,766,474.21 - Step 5: Solve for x
x = 11,620,800,766,474.21/2,912,199.70 - Step 6: Final answer
x = 3,990,385.95
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1.5x scale
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.