Finding the Fourth Proportional to 638,135.10, 957,202.65 and 401,939.10
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Solution
The fourth proportional to 638,135.10, 957,202.65 and 401,939.10 is: 602,908.65
Step by Step Solution
- Step 1: Write the proportion equation
638,135.10 : 957,202.65 = 401,939.10 : x - Step 2: Convert to fraction form
638,135.10/957,202.65 = 401,939.10/x - Step 3: Cross multiply
638,135.10x = 957,202.65 × 401,939.10 - Step 4: Simplify right side
638,135.10x = 384,737,171,658.62 - Step 5: Solve for x
x = 384,737,171,658.62/638,135.10 - Step 6: Final answer
x = 602,908.65
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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.