Finding the Fourth Proportional to 775,407.68, 1,163,112.21 and 242,970.23
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Solution
The fourth proportional to 775,407.68, 1,163,112.21 and 242,970.23 is: 364,455.56
Step by Step Solution
- Step 1: Write the proportion equation
775,407.68 : 1,163,112.21 = 242,970.23 : x - Step 2: Convert to fraction form
775,407.68/1,163,112.21 = 242,970.23/x - Step 3: Cross multiply
775,407.68x = 1,163,112.21 × 242,970.23 - Step 4: Simplify right side
775,407.68x = 282,601,644,087.29 - Step 5: Solve for x
x = 282,601,644,087.29/775,407.68 - Step 6: Final answer
x = 364,455.56
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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.