Finding the Fourth Proportional to 826,318.56, 1,239,461.28 and 543,793.68
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Solution
The fourth proportional to 826,318.56, 1,239,461.28 and 543,793.68 is: 815,679.62
Step by Step Solution
- Step 1: Write the proportion equation
826,318.56 : 1,239,461.28 = 543,793.68 : x - Step 2: Convert to fraction form
826,318.56/1,239,461.28 = 543,793.68/x - Step 3: Cross multiply
826,318.56x = 1,239,461.28 × 543,793.68 - Step 4: Simplify right side
826,318.56x = 674,011,210,668.71 - Step 5: Solve for x
x = 674,011,210,668.71/826,318.56 - Step 6: Final answer
x = 815,679.62
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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.