Finding the Fourth Proportional to 1,261,135.80, 1,888,593.30 and 838,121.40
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Solution
The fourth proportional to 1,261,135.80, 1,888,593.30 and 838,121.40 is: 1,255,115.00
Step by Step Solution
- Step 1: Write the proportion equation
1,261,135.80 : 1,888,593.30 = 838,121.40 : x - Step 2: Convert to fraction form
1,261,135.80/1,888,593.30 = 838,121.40/x - Step 3: Cross multiply
1,261,135.80x = 1,888,593.30 × 838,121.40 - Step 4: Simplify right side
1,261,135.80x = 1,582,870,460,626.62 - Step 5: Solve for x
x = 1,582,870,460,626.62/1,261,135.80 - Step 6: Final answer
x = 1,255,115.00
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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.