Finding the Fourth Proportional to 620,642, 930,963 and 226,658
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Solution
The fourth proportional to 620,642, 930,963 and 226,658 is: 339,987
Step by Step Solution
- Step 1: Write the proportion equation
620,642 : 930,963 = 226,658 : x - Step 2: Convert to fraction form
620,642/930,963 = 226,658/x - Step 3: Cross multiply
620,642x = 930,963 × 226,658 - Step 4: Simplify right side
620,642x = 211,010,211,654 - Step 5: Solve for x
x = 211,010,211,654/620,642 - Step 6: Final answer
x = 339,987
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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.