Finding the Fourth Proportional to 513,379.11, 708,400.28 and 283,905.41
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Solution
The fourth proportional to 513,379.11, 708,400.28 and 283,905.41 is: 391,754.68
Step by Step Solution
- Step 1: Write the proportion equation
513,379.11 : 708,400.28 = 283,905.41 : x - Step 2: Convert to fraction form
513,379.11/708,400.28 = 283,905.41/x - Step 3: Cross multiply
513,379.11x = 708,400.28 × 283,905.41 - Step 4: Simplify right side
513,379.11x = 201,118,669,105.28 - Step 5: Solve for x
x = 201,118,669,105.28/513,379.11 - Step 6: Final answer
x = 391,754.68
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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.