Finding the Fourth Proportional to 2,115,430.62, 3,174,406.82 and 767,698.56
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Solution
The fourth proportional to 2,115,430.62, 3,174,406.82 and 767,698.56 is: 1,152,005.42
Step by Step Solution
- Step 1: Write the proportion equation
2,115,430.62 : 3,174,406.82 = 767,698.56 : x - Step 2: Convert to fraction form
2,115,430.62/3,174,406.82 = 767,698.56/x - Step 3: Cross multiply
2,115,430.62x = 3,174,406.82 × 767,698.56 - Step 4: Simplify right side
2,115,430.62x = 2,436,987,544,568.18 - Step 5: Solve for x
x = 2,436,987,544,568.18/2,115,430.62 - Step 6: Final answer
x = 1,152,005.42
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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.