Finding the Fourth Proportional to 665,362.36, 918,199.14 and 378,882.46
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Solution
The fourth proportional to 665,362.36, 918,199.14 and 378,882.46 is: 522,857.27
Step by Step Solution
- Step 1: Write the proportion equation
665,362.36 : 918,199.14 = 378,882.46 : x - Step 2: Convert to fraction form
665,362.36/918,199.14 = 378,882.46/x - Step 3: Cross multiply
665,362.36x = 918,199.14 × 378,882.46 - Step 4: Simplify right side
665,362.36x = 347,889,548,933.08 - Step 5: Solve for x
x = 347,889,548,933.08/665,362.36 - Step 6: Final answer
x = 522,857.27
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.