Finding the Fourth Proportional to 691,347.21, 1,037,019.60 and 270,327.84
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Solution
The fourth proportional to 691,347.21, 1,037,019.60 and 270,327.84 is: 405,491.28
Step by Step Solution
- Step 1: Write the proportion equation
691,347.21 : 1,037,019.60 = 270,327.84 : x - Step 2: Convert to fraction form
691,347.21/1,037,019.60 = 270,327.84/x - Step 3: Cross multiply
691,347.21x = 1,037,019.60 × 270,327.84 - Step 4: Simplify right side
691,347.21x = 280,335,268,505.66 - Step 5: Solve for x
x = 280,335,268,505.66/691,347.21 - Step 6: Final answer
x = 405,491.28
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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.