Finding the Fourth Proportional to 862,902.35, 1,190,889.34 and 644,732.49
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Solution
The fourth proportional to 862,902.35, 1,190,889.34 and 644,732.49 is: 889,793.68
Step by Step Solution
- Step 1: Write the proportion equation
862,902.35 : 1,190,889.34 = 644,732.49 : x - Step 2: Convert to fraction form
862,902.35/1,190,889.34 = 644,732.49/x - Step 3: Cross multiply
862,902.35x = 1,190,889.34 × 644,732.49 - Step 4: Simplify right side
862,902.35x = 767,805,052,346.66 - Step 5: Solve for x
x = 767,805,052,346.66/862,902.35 - Step 6: Final answer
x = 889,793.68
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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.