Finding the Fourth Proportional to 559,766.62, 771,867.36 and 378,163.18
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Solution
The fourth proportional to 559,766.62, 771,867.36 and 378,163.18 is: 521,452.70
Step by Step Solution
- Step 1: Write the proportion equation
559,766.62 : 771,867.36 = 378,163.18 : x - Step 2: Convert to fraction form
559,766.62/771,867.36 = 378,163.18/x - Step 3: Cross multiply
559,766.62x = 771,867.36 × 378,163.18 - Step 4: Simplify right side
559,766.62x = 291,891,815,395.81 - Step 5: Solve for x
x = 291,891,815,395.81/559,766.62 - Step 6: Final answer
x = 521,452.70
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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.