Finding the Fourth Proportional to 2,617,704.80, 3,929,509.65 and 2,021,309.90
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Solution
The fourth proportional to 2,617,704.80, 3,929,509.65 and 2,021,309.90 is: 3,034,244.64
Step by Step Solution
- Step 1: Write the proportion equation
2,617,704.80 : 3,929,509.65 = 2,021,309.90 : x - Step 2: Convert to fraction form
2,617,704.80/3,929,509.65 = 2,021,309.90/x - Step 3: Cross multiply
2,617,704.80x = 3,929,509.65 × 2,021,309.90 - Step 4: Simplify right side
2,617,704.80x = 7,942,756,757,690.53 - Step 5: Solve for x
x = 7,942,756,757,690.53/2,617,704.80 - Step 6: Final answer
x = 3,034,244.64
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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.