Finding the Fourth Proportional to 517,745.05, 775,888.58 and 411,311.05
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Solution
The fourth proportional to 517,745.05, 775,888.58 and 411,311.05 is: 616,387.44
Step by Step Solution
- Step 1: Write the proportion equation
517,745.05 : 775,888.58 = 411,311.05 : x - Step 2: Convert to fraction form
517,745.05/775,888.58 = 411,311.05/x - Step 3: Cross multiply
517,745.05x = 775,888.58 × 411,311.05 - Step 4: Simplify right side
517,745.05x = 319,131,544,466.25 - Step 5: Solve for x
x = 319,131,544,466.25/517,745.05 - Step 6: Final answer
x = 616,387.44
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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.