Finding the Fourth Proportional to 470,757.10, 649,699.23 and 279,768.82
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Solution
The fourth proportional to 470,757.10, 649,699.23 and 279,768.82 is: 386,113.32
Step by Step Solution
- Step 1: Write the proportion equation
470,757.10 : 649,699.23 = 279,768.82 : x - Step 2: Convert to fraction form
470,757.10/649,699.23 = 279,768.82/x - Step 3: Cross multiply
470,757.10x = 649,699.23 × 279,768.82 - Step 4: Simplify right side
470,757.10x = 181,765,586,932.01 - Step 5: Solve for x
x = 181,765,586,932.01/470,757.10 - Step 6: Final answer
x = 386,113.32
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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.