Finding the Fourth Proportional to 2,589,738.40, 3,885,529.20 and 2,497,578.40
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Solution
The fourth proportional to 2,589,738.40, 3,885,529.20 and 2,497,578.40 is: 3,747,256.40
Step by Step Solution
- Step 1: Write the proportion equation
2,589,738.40 : 3,885,529.20 = 2,497,578.40 : x - Step 2: Convert to fraction form
2,589,738.40/3,885,529.20 = 2,497,578.40/x - Step 3: Cross multiply
2,589,738.40x = 3,885,529.20 × 2,497,578.40 - Step 4: Simplify right side
2,589,738.40x = 9,704,413,802,489.28 - Step 5: Solve for x
x = 9,704,413,802,489.28/2,589,738.40 - Step 6: Final answer
x = 3,747,256.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.