Finding the Fourth Proportional to 1,557,450.76, 2,149,278.01 and 869,115.39
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Solution
The fourth proportional to 1,557,450.76, 2,149,278.01 and 869,115.39 is: 1,199,376.98
Step by Step Solution
- Step 1: Write the proportion equation
1,557,450.76 : 2,149,278.01 = 869,115.39 : x - Step 2: Convert to fraction form
1,557,450.76/2,149,278.01 = 869,115.39/x - Step 3: Cross multiply
1,557,450.76x = 2,149,278.01 × 869,115.39 - Step 4: Simplify right side
1,557,450.76x = 1,867,970,595,879.57 - Step 5: Solve for x
x = 1,867,970,595,879.57/1,557,450.76 - Step 6: Final answer
x = 1,199,376.98
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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.