Finding the Fourth Proportional to 2,139,785.59, 2,953,206.20 and 1,324,251.93
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Solution
The fourth proportional to 2,139,785.59, 2,953,206.20 and 1,324,251.93 is: 1,827,654.62
Step by Step Solution
- Step 1: Write the proportion equation
2,139,785.59 : 2,953,206.20 = 1,324,251.93 : x - Step 2: Convert to fraction form
2,139,785.59/2,953,206.20 = 1,324,251.93/x - Step 3: Cross multiply
2,139,785.59x = 2,953,206.20 × 1,324,251.93 - Step 4: Simplify right side
2,139,785.59x = 3,910,789,010,037.97 - Step 5: Solve for x
x = 3,910,789,010,037.97/2,139,785.59 - Step 6: Final answer
x = 1,827,654.62
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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.