Finding the Fourth Proportional to 2,331,812.12, 3,217,815.77 and 1,299,266.55
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Solution
The fourth proportional to 2,331,812.12, 3,217,815.77 and 1,299,266.55 is: 1,792,940.50
Step by Step Solution
- Step 1: Write the proportion equation
2,331,812.12 : 3,217,815.77 = 1,299,266.55 : x - Step 2: Convert to fraction form
2,331,812.12/3,217,815.77 = 1,299,266.55/x - Step 3: Cross multiply
2,331,812.12x = 3,217,815.77 × 1,299,266.55 - Step 4: Simplify right side
2,331,812.12x = 4,180,800,387,527.16 - Step 5: Solve for x
x = 4,180,800,387,527.16/2,331,812.12 - Step 6: Final answer
x = 1,792,940.50
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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.