Finding the Fourth Proportional to 663,620.26, 915,827.97 and 373,322.74
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Solution
The fourth proportional to 663,620.26, 915,827.97 and 373,322.74 is: 515,203.39
Step by Step Solution
- Step 1: Write the proportion equation
663,620.26 : 915,827.97 = 373,322.74 : x - Step 2: Convert to fraction form
663,620.26/915,827.97 = 373,322.74/x - Step 3: Cross multiply
663,620.26x = 915,827.97 × 373,322.74 - Step 4: Simplify right side
663,620.26x = 341,899,407,129.04 - Step 5: Solve for x
x = 341,899,407,129.04/663,620.26 - Step 6: Final answer
x = 515,203.39
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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.