Finding the Fourth Proportional to 571,795.44, 789,078.21 and 317,146.62
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Solution
The fourth proportional to 571,795.44, 789,078.21 and 317,146.62 is: 437,662.61
Step by Step Solution
- Step 1: Write the proportion equation
571,795.44 : 789,078.21 = 317,146.62 : x - Step 2: Convert to fraction form
571,795.44/789,078.21 = 317,146.62/x - Step 3: Cross multiply
571,795.44x = 789,078.21 × 317,146.62 - Step 4: Simplify right side
571,795.44x = 250,253,487,217.15 - Step 5: Solve for x
x = 250,253,487,217.15/571,795.44 - Step 6: Final answer
x = 437,662.61
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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.