Finding the Fourth Proportional to 534,923.19, 738,269.73 and 331,039.80
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Solution
The fourth proportional to 534,923.19, 738,269.73 and 331,039.80 is: 456,881.79
Step by Step Solution
- Step 1: Write the proportion equation
534,923.19 : 738,269.73 = 331,039.80 : x - Step 2: Convert to fraction form
534,923.19/738,269.73 = 331,039.80/x - Step 3: Cross multiply
534,923.19x = 738,269.73 × 331,039.80 - Step 4: Simplify right side
534,923.19x = 244,396,663,765.25 - Step 5: Solve for x
x = 244,396,663,765.25/534,923.19 - Step 6: Final answer
x = 456,881.79
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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.