Finding the Fourth Proportional to 2,139,205.60, 3,207,253.20 and 876,383.20
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Solution
The fourth proportional to 2,139,205.60, 3,207,253.20 and 876,383.20 is: 1,313,937.67
Step by Step Solution
- Step 1: Write the proportion equation
2,139,205.60 : 3,207,253.20 = 876,383.20 : x - Step 2: Convert to fraction form
2,139,205.60/3,207,253.20 = 876,383.20/x - Step 3: Cross multiply
2,139,205.60x = 3,207,253.20 × 876,383.20 - Step 4: Simplify right side
2,139,205.60x = 2,810,782,822,626.24 - Step 5: Solve for x
x = 2,810,782,822,626.24/2,139,205.60 - Step 6: Final answer
x = 1,313,937.67
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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.