Finding the Fourth Proportional to 470,821.60, 649,736.40 and 277,237.68
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Solution
The fourth proportional to 470,821.60, 649,736.40 and 277,237.68 is: 382,589.52
Step by Step Solution
- Step 1: Write the proportion equation
470,821.60 : 649,736.40 = 277,237.68 : x - Step 2: Convert to fraction form
470,821.60/649,736.40 = 277,237.68/x - Step 3: Cross multiply
470,821.60x = 649,736.40 × 277,237.68 - Step 4: Simplify right side
470,821.60x = 180,131,412,147.55 - Step 5: Solve for x
x = 180,131,412,147.55/470,821.60 - Step 6: Final answer
x = 382,589.52
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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.