Finding the Fourth Proportional to 663,379.26, 915,453.22 and 372,991.08
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Solution
The fourth proportional to 663,379.26, 915,453.22 and 372,991.08 is: 514,721.98
Step by Step Solution
- Step 1: Write the proportion equation
663,379.26 : 915,453.22 = 372,991.08 : x - Step 2: Convert to fraction form
663,379.26/915,453.22 = 372,991.08/x - Step 3: Cross multiply
663,379.26x = 915,453.22 × 372,991.08 - Step 4: Simplify right side
663,379.26x = 341,455,885,217.28 - Step 5: Solve for x
x = 341,455,885,217.28/663,379.26 - Step 6: Final answer
x = 514,721.98
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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.