Finding the Fourth Proportional to 3,128,908.32, 4,685,423.64 and 2,622,136.68
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Solution
The fourth proportional to 3,128,908.32, 4,685,423.64 and 2,622,136.68 is: 3,926,551.99
Step by Step Solution
- Step 1: Write the proportion equation
3,128,908.32 : 4,685,423.64 = 2,622,136.68 : x - Step 2: Convert to fraction form
3,128,908.32/4,685,423.64 = 2,622,136.68/x - Step 3: Cross multiply
3,128,908.32x = 4,685,423.64 × 2,622,136.68 - Step 4: Simplify right side
3,128,908.32x = 12,285,821,187,783.12 - Step 5: Solve for x
x = 12,285,821,187,783.12/3,128,908.32 - Step 6: Final answer
x = 3,926,551.99
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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.