Finding the Fourth Proportional to 663,133.60, 993,529.20 and 641,207.20
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Solution
The fourth proportional to 663,133.60, 993,529.20 and 641,207.20 is: 960,678.33
Step by Step Solution
- Step 1: Write the proportion equation
663,133.60 : 993,529.20 = 641,207.20 : x - Step 2: Convert to fraction form
663,133.60/993,529.20 = 641,207.20/x - Step 3: Cross multiply
663,133.60x = 993,529.20 × 641,207.20 - Step 4: Simplify right side
663,133.60x = 637,058,076,450.24 - Step 5: Solve for x
x = 637,058,076,450.24/663,133.60 - Step 6: Final answer
x = 960,678.33
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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.