Finding the Fourth Proportional to 2,890,589.46, 3,987,209.60 and 1,859,441.68
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Solution
The fourth proportional to 2,890,589.46, 3,987,209.60 and 1,859,441.68 is: 2,564,869.15
Step by Step Solution
- Step 1: Write the proportion equation
2,890,589.46 : 3,987,209.60 = 1,859,441.68 : x - Step 2: Convert to fraction form
2,890,589.46/3,987,209.60 = 1,859,441.68/x - Step 3: Cross multiply
2,890,589.46x = 3,987,209.60 × 1,859,441.68 - Step 4: Simplify right side
2,890,589.46x = 7,413,983,717,136.13 - Step 5: Solve for x
x = 7,413,983,717,136.13/2,890,589.46 - Step 6: Final answer
x = 2,564,869.15
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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.