Finding the Fourth Proportional to 855,954.84, 1,283,929.12 and 256,913.40
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Solution
The fourth proportional to 855,954.84, 1,283,929.12 and 256,913.40 is: 385,369.16
Step by Step Solution
- Step 1: Write the proportion equation
855,954.84 : 1,283,929.12 = 256,913.40 : x - Step 2: Convert to fraction form
855,954.84/1,283,929.12 = 256,913.40/x - Step 3: Cross multiply
855,954.84x = 1,283,929.12 × 256,913.40 - Step 4: Simplify right side
855,954.84x = 329,858,595,578.21 - Step 5: Solve for x
x = 329,858,595,578.21/855,954.84 - Step 6: Final answer
x = 385,369.16
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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.