Finding the Fourth Proportional to 1,491,268.32, 2,058,093.36 and 918,643.68
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Solution
The fourth proportional to 1,491,268.32, 2,058,093.36 and 918,643.68 is: 1,267,816.42
Step by Step Solution
- Step 1: Write the proportion equation
1,491,268.32 : 2,058,093.36 = 918,643.68 : x - Step 2: Convert to fraction form
1,491,268.32/2,058,093.36 = 918,643.68/x - Step 3: Cross multiply
1,491,268.32x = 2,058,093.36 × 918,643.68 - Step 4: Simplify right side
1,491,268.32x = 1,890,654,458,013.97 - Step 5: Solve for x
x = 1,890,654,458,013.97/1,491,268.32 - Step 6: Final answer
x = 1,267,816.42
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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.