Finding the Fourth Proportional to 641,861.09, 885,782.12 and 351,484.91
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Solution
The fourth proportional to 641,861.09, 885,782.12 and 351,484.91 is: 485,056.74
Step by Step Solution
- Step 1: Write the proportion equation
641,861.09 : 885,782.12 = 351,484.91 : x - Step 2: Convert to fraction form
641,861.09/885,782.12 = 351,484.91/x - Step 3: Cross multiply
641,861.09x = 885,782.12 × 351,484.91 - Step 4: Simplify right side
641,861.09x = 311,339,048,727.81 - Step 5: Solve for x
x = 311,339,048,727.81/641,861.09 - Step 6: Final answer
x = 485,056.74
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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.