Finding the Fourth Proportional to 2,165,886.54, 2,987,984.94 and 1,305,969.08
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Solution
The fourth proportional to 2,165,886.54, 2,987,984.94 and 1,305,969.08 is: 1,801,671.44
Step by Step Solution
- Step 1: Write the proportion equation
2,165,886.54 : 2,987,984.94 = 1,305,969.08 : x - Step 2: Convert to fraction form
2,165,886.54/2,987,984.94 = 1,305,969.08/x - Step 3: Cross multiply
2,165,886.54x = 2,987,984.94 × 1,305,969.08 - Step 4: Simplify right side
2,165,886.54x = 3,902,215,928,205.73 - Step 5: Solve for x
x = 3,902,215,928,205.73/2,165,886.54 - Step 6: Final answer
x = 1,801,671.44
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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.