Finding the Fourth Proportional to 461,715.14, 635,745.68 and 393,579.38
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Solution
The fourth proportional to 461,715.14, 635,745.68 and 393,579.38 is: 541,928.06
Step by Step Solution
- Step 1: Write the proportion equation
461,715.14 : 635,745.68 = 393,579.38 : x - Step 2: Convert to fraction form
461,715.14/635,745.68 = 393,579.38/x - Step 3: Cross multiply
461,715.14x = 635,745.68 × 393,579.38 - Step 4: Simplify right side
461,715.14x = 250,216,390,572.08 - Step 5: Solve for x
x = 250,216,390,572.08/461,715.14 - Step 6: Final answer
x = 541,928.06
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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.