Finding the Fourth Proportional to 1,148,464.26, 1,584,880.70 and 639,286.92
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Solution
The fourth proportional to 1,148,464.26, 1,584,880.70 and 639,286.92 is: 882,215.96
Step by Step Solution
- Step 1: Write the proportion equation
1,148,464.26 : 1,584,880.70 = 639,286.92 : x - Step 2: Convert to fraction form
1,148,464.26/1,584,880.70 = 639,286.92/x - Step 3: Cross multiply
1,148,464.26x = 1,584,880.70 × 639,286.92 - Step 4: Simplify right side
1,148,464.26x = 1,013,193,498,074.01 - Step 5: Solve for x
x = 1,013,193,498,074.01/1,148,464.26 - Step 6: Final answer
x = 882,215.96
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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.