Finding the Fourth Proportional to 2,172,456.62, 3,258,687.68 and 752,512.56
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Solution
The fourth proportional to 2,172,456.62, 3,258,687.68 and 752,512.56 is: 1,128,769.79
Step by Step Solution
- Step 1: Write the proportion equation
2,172,456.62 : 3,258,687.68 = 752,512.56 : x - Step 2: Convert to fraction form
2,172,456.62/3,258,687.68 = 752,512.56/x - Step 3: Cross multiply
2,172,456.62x = 3,258,687.68 × 752,512.56 - Step 4: Simplify right side
2,172,456.62x = 2,452,203,408,317.26 - Step 5: Solve for x
x = 2,452,203,408,317.26/2,172,456.62 - Step 6: Final answer
x = 1,128,769.79
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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.