Finding the Fourth Proportional to 2,128,269.99, 3,192,315.67 and 990,640.98
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Solution
The fourth proportional to 2,128,269.99, 3,192,315.67 and 990,640.98 is: 1,485,919.90
Step by Step Solution
- Step 1: Write the proportion equation
2,128,269.99 : 3,192,315.67 = 990,640.98 : x - Step 2: Convert to fraction form
2,128,269.99/3,192,315.67 = 990,640.98/x - Step 3: Cross multiply
2,128,269.99x = 3,192,315.67 × 990,640.98 - Step 4: Simplify right side
2,128,269.99x = 3,162,438,723,798.16 - Step 5: Solve for x
x = 3,162,438,723,798.16/2,128,269.99 - Step 6: Final answer
x = 1,485,919.90
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.