Finding the Fourth Proportional to 497,440.23, 686,272.64 and 306,121.47
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Solution
The fourth proportional to 497,440.23, 686,272.64 and 306,121.47 is: 422,327.70
Step by Step Solution
- Step 1: Write the proportion equation
497,440.23 : 686,272.64 = 306,121.47 : x - Step 2: Convert to fraction form
497,440.23/686,272.64 = 306,121.47/x - Step 3: Cross multiply
497,440.23x = 686,272.64 × 306,121.47 - Step 4: Simplify right side
497,440.23x = 210,082,787,846.97 - Step 5: Solve for x
x = 210,082,787,846.97/497,440.23 - Step 6: Final answer
x = 422,327.70
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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.