Finding the Fourth Proportional to 624,698.70, 936,771.03 and 287,657.70
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Solution
The fourth proportional to 624,698.70, 936,771.03 and 287,657.70 is: 431,358.99
Step by Step Solution
- Step 1: Write the proportion equation
624,698.70 : 936,771.03 = 287,657.70 : x - Step 2: Convert to fraction form
624,698.70/936,771.03 = 287,657.70/x - Step 3: Cross multiply
624,698.70x = 936,771.03 × 287,657.70 - Step 4: Simplify right side
624,698.70x = 269,469,399,916.43 - Step 5: Solve for x
x = 269,469,399,916.43/624,698.70 - Step 6: Final answer
x = 431,358.99
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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.