Finding the Fourth Proportional to 784,979.29, 1,082,987.97 and 445,250.71
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Solution
The fourth proportional to 784,979.29, 1,082,987.97 and 445,250.71 is: 614,285.20
Step by Step Solution
- Step 1: Write the proportion equation
784,979.29 : 1,082,987.97 = 445,250.71 : x - Step 2: Convert to fraction form
784,979.29/1,082,987.97 = 445,250.71/x - Step 3: Cross multiply
784,979.29x = 1,082,987.97 × 445,250.71 - Step 4: Simplify right side
784,979.29x = 482,201,162,563.96 - Step 5: Solve for x
x = 482,201,162,563.96/784,979.29 - Step 6: Final answer
x = 614,285.20
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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.