Finding the Fourth Proportional to 780,327.91, 1,170,491.87 and 219,362.41
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Solution
The fourth proportional to 780,327.91, 1,170,491.87 and 219,362.41 is: 329,043.62
Step by Step Solution
- Step 1: Write the proportion equation
780,327.91 : 1,170,491.87 = 219,362.41 : x - Step 2: Convert to fraction form
780,327.91/1,170,491.87 = 219,362.41/x - Step 3: Cross multiply
780,327.91x = 1,170,491.87 × 219,362.41 - Step 4: Simplify right side
780,327.91x = 256,761,917,488.61 - Step 5: Solve for x
x = 256,761,917,488.61/780,327.91 - Step 6: Final answer
x = 329,043.62
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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.