Finding the Fourth Proportional to 854,124.09, 1,178,635.05 and 491,489.42
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Solution
The fourth proportional to 854,124.09, 1,178,635.05 and 491,489.42 is: 678,223.06
Step by Step Solution
- Step 1: Write the proportion equation
854,124.09 : 1,178,635.05 = 491,489.42 : x - Step 2: Convert to fraction form
854,124.09/1,178,635.05 = 491,489.42/x - Step 3: Cross multiply
854,124.09x = 1,178,635.05 × 491,489.42 - Step 4: Simplify right side
854,124.09x = 579,286,651,223.00 - Step 5: Solve for x
x = 579,286,651,223.00/854,124.09 - Step 6: Final answer
x = 678,223.06
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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.