Finding the Fourth Proportional to 919,441.80, 1,378,506.60 and 413,588.70
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Solution
The fourth proportional to 919,441.80, 1,378,506.60 and 413,588.70 is: 620,087.92
Step by Step Solution
- Step 1: Write the proportion equation
919,441.80 : 1,378,506.60 = 413,588.70 : x - Step 2: Convert to fraction form
919,441.80/1,378,506.60 = 413,588.70/x - Step 3: Cross multiply
919,441.80x = 1,378,506.60 × 413,588.70 - Step 4: Simplify right side
919,441.80x = 570,134,752,635.42 - Step 5: Solve for x
x = 570,134,752,635.42/919,441.80 - Step 6: Final answer
x = 620,087.92
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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.