Finding the Fourth Proportional to 1,585,832.78, 2,188,464.99 and 860,686.94
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Solution
The fourth proportional to 1,585,832.78, 2,188,464.99 and 860,686.94 is: 1,187,756.53
Step by Step Solution
- Step 1: Write the proportion equation
1,585,832.78 : 2,188,464.99 = 860,686.94 : x - Step 2: Convert to fraction form
1,585,832.78/2,188,464.99 = 860,686.94/x - Step 3: Cross multiply
1,585,832.78x = 2,188,464.99 × 860,686.94 - Step 4: Simplify right side
1,585,832.78x = 1,883,583,235,540.23 - Step 5: Solve for x
x = 1,883,583,235,540.23/1,585,832.78 - Step 6: Final answer
x = 1,187,756.53
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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.