Finding the Fourth Proportional to 3,855,350, 5,320,499.64 and 2,136,309.68
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Solution
The fourth proportional to 3,855,350, 5,320,499.64 and 2,136,309.68 is: 2,948,171.99
Step by Step Solution
- Step 1: Write the proportion equation
3,855,350 : 5,320,499.64 = 2,136,309.68 : x - Step 2: Convert to fraction form
3,855,350/5,320,499.64 = 2,136,309.68/x - Step 3: Cross multiply
3,855,350x = 5,320,499.64 × 2,136,309.68 - Step 4: Simplify right side
3,855,350x = 11,366,234,883,368.52 - Step 5: Solve for x
x = 11,366,234,883,368.52/3,855,350 - Step 6: Final answer
x = 2,948,171.99
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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.