Finding the Fourth Proportional to 1,568,817.20, 2,352,915.84 and 431,285.84
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Solution
The fourth proportional to 1,568,817.20, 2,352,915.84 and 431,285.84 is: 646,843.55
Step by Step Solution
- Step 1: Write the proportion equation
1,568,817.20 : 2,352,915.84 = 431,285.84 : x - Step 2: Convert to fraction form
1,568,817.20/2,352,915.84 = 431,285.84/x - Step 3: Cross multiply
1,568,817.20x = 2,352,915.84 × 431,285.84 - Step 4: Simplify right side
1,568,817.20x = 1,014,779,284,503.71 - Step 5: Solve for x
x = 1,014,779,284,503.71/1,568,817.20 - Step 6: Final answer
x = 646,843.55
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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.