Finding the Fourth Proportional to 2,297,732.20, 3,170,784.90 and 1,279,115.08
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Solution
The fourth proportional to 2,297,732.20, 3,170,784.90 and 1,279,115.08 is: 1,765,131.19
Step by Step Solution
- Step 1: Write the proportion equation
2,297,732.20 : 3,170,784.90 = 1,279,115.08 : x - Step 2: Convert to fraction form
2,297,732.20/3,170,784.90 = 1,279,115.08/x - Step 3: Cross multiply
2,297,732.20x = 3,170,784.90 × 1,279,115.08 - Step 4: Simplify right side
2,297,732.20x = 4,055,798,781,026.29 - Step 5: Solve for x
x = 4,055,798,781,026.29/2,297,732.20 - Step 6: Final answer
x = 1,765,131.19
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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.