Finding the Fourth Proportional to 2,043,051.12, 2,819,369.43 and 1,279,525.68
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Solution
The fourth proportional to 2,043,051.12, 2,819,369.43 and 1,279,525.68 is: 1,765,719.69
Step by Step Solution
- Step 1: Write the proportion equation
2,043,051.12 : 2,819,369.43 = 1,279,525.68 : x - Step 2: Convert to fraction form
2,043,051.12/2,819,369.43 = 1,279,525.68/x - Step 3: Cross multiply
2,043,051.12x = 2,819,369.43 × 1,279,525.68 - Step 4: Simplify right side
2,043,051.12x = 3,607,455,587,091.96 - Step 5: Solve for x
x = 3,607,455,587,091.96/2,043,051.12 - Step 6: Final answer
x = 1,765,719.69
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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.