Finding the Fourth Proportional to 818,007.68, 1,227,135.36 and 256,989.44
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Solution
The fourth proportional to 818,007.68, 1,227,135.36 and 256,989.44 is: 385,523.07
Step by Step Solution
- Step 1: Write the proportion equation
818,007.68 : 1,227,135.36 = 256,989.44 : x - Step 2: Convert to fraction form
818,007.68/1,227,135.36 = 256,989.44/x - Step 3: Cross multiply
818,007.68x = 1,227,135.36 × 256,989.44 - Step 4: Simplify right side
818,007.68x = 315,360,828,970.60 - Step 5: Solve for x
x = 315,360,828,970.60/818,007.68 - Step 6: Final answer
x = 385,523.07
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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.