Finding the Fourth Proportional to 513,993.28, 709,299.76 and 284,537.44
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Solution
The fourth proportional to 513,993.28, 709,299.76 and 284,537.44 is: 392,655.60
Step by Step Solution
- Step 1: Write the proportion equation
513,993.28 : 709,299.76 = 284,537.44 : x - Step 2: Convert to fraction form
513,993.28/709,299.76 = 284,537.44/x - Step 3: Cross multiply
513,993.28x = 709,299.76 × 284,537.44 - Step 4: Simplify right side
513,993.28x = 201,822,337,903.01 - Step 5: Solve for x
x = 201,822,337,903.01/513,993.28 - Step 6: Final answer
x = 392,655.60
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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.