Finding the Fourth Proportional to 2,167,797.90, 2,991,744.81 and 1,201,231.38
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Solution
The fourth proportional to 2,167,797.90, 2,991,744.81 and 1,201,231.38 is: 1,657,801.10
Step by Step Solution
- Step 1: Write the proportion equation
2,167,797.90 : 2,991,744.81 = 1,201,231.38 : x - Step 2: Convert to fraction form
2,167,797.90/2,991,744.81 = 1,201,231.38/x - Step 3: Cross multiply
2,167,797.90x = 2,991,744.81 × 1,201,231.38 - Step 4: Simplify right side
2,167,797.90x = 3,593,777,746,724.14 - Step 5: Solve for x
x = 3,593,777,746,724.14/2,167,797.90 - Step 6: Final answer
x = 1,657,801.10
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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.