Finding the Fourth Proportional to 1,585,872.42, 2,188,506.09 and 860,720.16
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Solution
The fourth proportional to 1,585,872.42, 2,188,506.09 and 860,720.16 is: 1,187,794.99
Step by Step Solution
- Step 1: Write the proportion equation
1,585,872.42 : 2,188,506.09 = 860,720.16 : x - Step 2: Convert to fraction form
1,585,872.42/2,188,506.09 = 860,720.16/x - Step 3: Cross multiply
1,585,872.42x = 2,188,506.09 × 860,720.16 - Step 4: Simplify right side
1,585,872.42x = 1,883,691,311,945.77 - Step 5: Solve for x
x = 1,883,691,311,945.77/1,585,872.42 - Step 6: Final answer
x = 1,187,794.99
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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.