Finding the Fourth Proportional to 482,757.20, 724,135.80 and 447,765.20
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Solution
The fourth proportional to 482,757.20, 724,135.80 and 447,765.20 is: 671,647.80
Step by Step Solution
- Step 1: Write the proportion equation
482,757.20 : 724,135.80 = 447,765.20 : x - Step 2: Convert to fraction form
482,757.20/724,135.80 = 447,765.20/x - Step 3: Cross multiply
482,757.20x = 724,135.80 × 447,765.20 - Step 4: Simplify right side
482,757.20x = 324,242,811,314.16 - Step 5: Solve for x
x = 324,242,811,314.16/482,757.20 - Step 6: Final answer
x = 671,647.80
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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.