Finding the Fourth Proportional to 762,395.36, 1,143,596.97 and 256,960.71
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Solution
The fourth proportional to 762,395.36, 1,143,596.97 and 256,960.71 is: 385,442.39
Step by Step Solution
- Step 1: Write the proportion equation
762,395.36 : 1,143,596.97 = 256,960.71 : x - Step 2: Convert to fraction form
762,395.36/1,143,596.97 = 256,960.71/x - Step 3: Cross multiply
762,395.36x = 1,143,596.97 × 256,960.71 - Step 4: Simplify right side
762,395.36x = 293,859,489,365.05 - Step 5: Solve for x
x = 293,859,489,365.05/762,395.36 - Step 6: Final answer
x = 385,442.39
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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.