Finding the Fourth Proportional to 2,165,866.63, 2,987,957.73 and 1,305,949.17
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Solution
The fourth proportional to 2,165,866.63, 2,987,957.73 and 1,305,949.17 is: 1,801,644.14
Step by Step Solution
- Step 1: Write the proportion equation
2,165,866.63 : 2,987,957.73 = 1,305,949.17 : x - Step 2: Convert to fraction form
2,165,866.63/2,987,957.73 = 1,305,949.17/x - Step 3: Cross multiply
2,165,866.63x = 2,987,957.73 × 1,305,949.17 - Step 4: Simplify right side
2,165,866.63x = 3,902,120,917,488.58 - Step 5: Solve for x
x = 3,902,120,917,488.58/2,165,866.63 - Step 6: Final answer
x = 1,801,644.14
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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.