Finding the Fourth Proportional to 639,244.71, 957,704.18 and 372,195.61
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Solution
The fourth proportional to 639,244.71, 957,704.18 and 372,195.61 is: 557,616.33
Step by Step Solution
- Step 1: Write the proportion equation
639,244.71 : 957,704.18 = 372,195.61 : x - Step 2: Convert to fraction form
639,244.71/957,704.18 = 372,195.61/x - Step 3: Cross multiply
639,244.71x = 957,704.18 × 372,195.61 - Step 4: Simplify right side
639,244.71x = 356,453,287,219.41 - Step 5: Solve for x
x = 356,453,287,219.41/639,244.71 - Step 6: Final answer
x = 557,616.33
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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.