Finding the Fourth Proportional to 854,216.53, 1,179,115.67 and 491,784.84
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Solution
The fourth proportional to 854,216.53, 1,179,115.67 and 491,784.84 is: 678,833.99
Step by Step Solution
- Step 1: Write the proportion equation
854,216.53 : 1,179,115.67 = 491,784.84 : x - Step 2: Convert to fraction form
854,216.53/1,179,115.67 = 491,784.84/x - Step 3: Cross multiply
854,216.53x = 1,179,115.67 × 491,784.84 - Step 4: Simplify right side
854,216.53x = 579,871,212,341.91 - Step 5: Solve for x
x = 579,871,212,341.91/854,216.53 - Step 6: Final answer
x = 678,833.99
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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.