Finding the Fourth Proportional to 2,165,869.29, 2,987,961.38 and 1,305,951.83
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Solution
The fourth proportional to 2,165,869.29, 2,987,961.38 and 1,305,951.83 is: 1,801,647.79
Step by Step Solution
- Step 1: Write the proportion equation
2,165,869.29 : 2,987,961.38 = 1,305,951.83 : x - Step 2: Convert to fraction form
2,165,869.29/2,987,961.38 = 1,305,951.83/x - Step 3: Cross multiply
2,165,869.29x = 2,987,961.38 × 1,305,951.83 - Step 4: Simplify right side
2,165,869.29x = 3,902,133,610,710.76 - Step 5: Solve for x
x = 3,902,133,610,710.76/2,165,869.29 - Step 6: Final answer
x = 1,801,647.79
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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.