Finding the Fourth Proportional to 855,910.84, 1,283,991.42 and 256,919.32
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Solution
The fourth proportional to 855,910.84, 1,283,991.42 and 256,919.32 is: 385,416.55
Step by Step Solution
- Step 1: Write the proportion equation
855,910.84 : 1,283,991.42 = 256,919.32 : x - Step 2: Convert to fraction form
855,910.84/1,283,991.42 = 256,919.32/x - Step 3: Cross multiply
855,910.84x = 1,283,991.42 × 256,919.32 - Step 4: Simplify right side
855,910.84x = 329,882,202,512.23 - Step 5: Solve for x
x = 329,882,202,512.23/855,910.84 - Step 6: Final answer
x = 385,416.55
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1.5x scale
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.