Finding the Fourth Proportional to 1,638,565.87, 2,261,487.25 and 985,851.62
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Solution
The fourth proportional to 1,638,565.87, 2,261,487.25 and 985,851.62 is: 1,360,635.49
Step by Step Solution
- Step 1: Write the proportion equation
1,638,565.87 : 2,261,487.25 = 985,851.62 : x - Step 2: Convert to fraction form
1,638,565.87/2,261,487.25 = 985,851.62/x - Step 3: Cross multiply
1,638,565.87x = 2,261,487.25 × 985,851.62 - Step 4: Simplify right side
1,638,565.87x = 2,229,490,867,427.30 - Step 5: Solve for x
x = 2,229,490,867,427.30/1,638,565.87 - Step 6: Final answer
x = 1,360,635.49
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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.