Finding the Fourth Proportional to 658,620.21, 908,896.82 and 356,814.21
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Solution
The fourth proportional to 658,620.21, 908,896.82 and 356,814.21 is: 492,404.11
Step by Step Solution
- Step 1: Write the proportion equation
658,620.21 : 908,896.82 = 356,814.21 : x - Step 2: Convert to fraction form
658,620.21/908,896.82 = 356,814.21/x - Step 3: Cross multiply
658,620.21x = 908,896.82 × 356,814.21 - Step 4: Simplify right side
658,620.21x = 324,307,300,799.81 - Step 5: Solve for x
x = 324,307,300,799.81/658,620.21 - Step 6: Final answer
x = 492,404.11
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1.5x scale
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.