Finding the Fourth Proportional to 513,163.38, 708,111.20 and 283,683.68
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Solution
The fourth proportional to 513,163.38, 708,111.20 and 283,683.68 is: 391,453.47
Step by Step Solution
- Step 1: Write the proportion equation
513,163.38 : 708,111.20 = 283,683.68 : x - Step 2: Convert to fraction form
513,163.38/708,111.20 = 283,683.68/x - Step 3: Cross multiply
513,163.38x = 708,111.20 × 283,683.68 - Step 4: Simplify right side
513,163.38x = 200,879,586,106.24 - Step 5: Solve for x
x = 200,879,586,106.24/513,163.38 - Step 6: Final answer
x = 391,453.47
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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.