Finding the Fourth Proportional to 647,212.80, 970,473.60 and 272,812.80
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Solution
The fourth proportional to 647,212.80, 970,473.60 and 272,812.80 is: 409,073.52
Step by Step Solution
- Step 1: Write the proportion equation
647,212.80 : 970,473.60 = 272,812.80 : x - Step 2: Convert to fraction form
647,212.80/970,473.60 = 272,812.80/x - Step 3: Cross multiply
647,212.80x = 970,473.60 × 272,812.80 - Step 4: Simplify right side
647,212.80x = 264,757,620,142.08 - Step 5: Solve for x
x = 264,757,620,142.08/647,212.80 - Step 6: Final answer
x = 409,073.52
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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.