Finding the Fourth Proportional to 1,682,455.68, 2,321,707.86 and 957,235.68
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Solution
The fourth proportional to 1,682,455.68, 2,321,707.86 and 957,235.68 is: 1,320,939.17
Step by Step Solution
- Step 1: Write the proportion equation
1,682,455.68 : 2,321,707.86 = 957,235.68 : x - Step 2: Convert to fraction form
1,682,455.68/2,321,707.86 = 957,235.68/x - Step 3: Cross multiply
1,682,455.68x = 2,321,707.86 × 957,235.68 - Step 4: Simplify right side
1,682,455.68x = 2,222,421,602,128.44 - Step 5: Solve for x
x = 2,222,421,602,128.44/1,682,455.68 - Step 6: Final answer
x = 1,320,939.17
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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.