Finding the Fourth Proportional to 620,678.44, 856,537.26 and 352,406.44
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Solution
The fourth proportional to 620,678.44, 856,537.26 and 352,406.44 is: 486,321.46
Step by Step Solution
- Step 1: Write the proportion equation
620,678.44 : 856,537.26 = 352,406.44 : x - Step 2: Convert to fraction form
620,678.44/856,537.26 = 352,406.44/x - Step 3: Cross multiply
620,678.44x = 856,537.26 × 352,406.44 - Step 4: Simplify right side
620,678.44x = 301,849,246,523.95 - Step 5: Solve for x
x = 301,849,246,523.95/620,678.44 - Step 6: Final answer
x = 486,321.46
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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.