Finding the Fourth Proportional to 482,918.20, 724,085.70 and 216,629.08
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Solution
The fourth proportional to 482,918.20, 724,085.70 and 216,629.08 is: 324,812.81
Step by Step Solution
- Step 1: Write the proportion equation
482,918.20 : 724,085.70 = 216,629.08 : x - Step 2: Convert to fraction form
482,918.20/724,085.70 = 216,629.08/x - Step 3: Cross multiply
482,918.20x = 724,085.70 × 216,629.08 - Step 4: Simplify right side
482,918.20x = 156,858,019,032.16 - Step 5: Solve for x
x = 156,858,019,032.16/482,918.20 - Step 6: Final answer
x = 324,812.81
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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.