Finding the Fourth Proportional to 1,351,987.56, 1,863,755.06 and 1,029,135.24
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Solution
The fourth proportional to 1,351,987.56, 1,863,755.06 and 1,029,135.24 is: 1,418,693.54
Step by Step Solution
- Step 1: Write the proportion equation
1,351,987.56 : 1,863,755.06 = 1,029,135.24 : x - Step 2: Convert to fraction form
1,351,987.56/1,863,755.06 = 1,029,135.24/x - Step 3: Cross multiply
1,351,987.56x = 1,863,755.06 × 1,029,135.24 - Step 4: Simplify right side
1,351,987.56x = 1,918,056,010,974.31 - Step 5: Solve for x
x = 1,918,056,010,974.31/1,351,987.56 - Step 6: Final answer
x = 1,418,693.54
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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.