Finding the Fourth Proportional to 879,883.74, 1,214,091.72 and 512,438.58
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Solution
The fourth proportional to 879,883.74, 1,214,091.72 and 512,438.58 is: 707,079.14
Step by Step Solution
- Step 1: Write the proportion equation
879,883.74 : 1,214,091.72 = 512,438.58 : x - Step 2: Convert to fraction form
879,883.74/1,214,091.72 = 512,438.58/x - Step 3: Cross multiply
879,883.74x = 1,214,091.72 × 512,438.58 - Step 4: Simplify right side
879,883.74x = 622,147,436,986.56 - Step 5: Solve for x
x = 622,147,436,986.56/879,883.74 - Step 6: Final answer
x = 707,079.14
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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.