Finding the Fourth Proportional to 384,214.70, 576,322.05 and 378,309.80
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Solution
The fourth proportional to 384,214.70, 576,322.05 and 378,309.80 is: 567,464.70
Step by Step Solution
- Step 1: Write the proportion equation
384,214.70 : 576,322.05 = 378,309.80 : x - Step 2: Convert to fraction form
384,214.70/576,322.05 = 378,309.80/x - Step 3: Cross multiply
384,214.70x = 576,322.05 × 378,309.80 - Step 4: Simplify right side
384,214.70x = 218,028,279,471.09 - Step 5: Solve for x
x = 218,028,279,471.09/384,214.70 - Step 6: Final answer
x = 567,464.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.