Finding the Fourth Proportional to 3,979,992.32, 5,968,231.68 and 1,139,459.84
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Solution
The fourth proportional to 3,979,992.32, 5,968,231.68 and 1,139,459.84 is: 1,708,686.79
Step by Step Solution
- Step 1: Write the proportion equation
3,979,992.32 : 5,968,231.68 = 1,139,459.84 : x - Step 2: Convert to fraction form
3,979,992.32/5,968,231.68 = 1,139,459.84/x - Step 3: Cross multiply
3,979,992.32x = 5,968,231.68 × 1,139,459.84 - Step 4: Simplify right side
3,979,992.32x = 6,800,560,315,175.73 - Step 5: Solve for x
x = 6,800,560,315,175.73/3,979,992.32 - Step 6: Final answer
x = 1,708,686.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.