Finding the Fourth Proportional to 2,812,321.09, 3,880,983.75 and 1,523,131.96
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Solution
The fourth proportional to 2,812,321.09, 3,880,983.75 and 1,523,131.96 is: 2,101,911.62
Step by Step Solution
- Step 1: Write the proportion equation
2,812,321.09 : 3,880,983.75 = 1,523,131.96 : x - Step 2: Convert to fraction form
2,812,321.09/3,880,983.75 = 1,523,131.96/x - Step 3: Cross multiply
2,812,321.09x = 3,880,983.75 × 1,523,131.96 - Step 4: Simplify right side
2,812,321.09x = 5,911,250,385,865.65 - Step 5: Solve for x
x = 5,911,250,385,865.65/2,812,321.09 - Step 6: Final answer
x = 2,101,911.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.