Finding the Fourth Proportional to 624,614.10, 936,780.87 and 287,330.79
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Solution
The fourth proportional to 624,614.10, 936,780.87 and 287,330.79 is: 430,931.65
Step by Step Solution
- Step 1: Write the proportion equation
624,614.10 : 936,780.87 = 287,330.79 : x - Step 2: Convert to fraction form
624,614.10/936,780.87 = 287,330.79/x - Step 3: Cross multiply
624,614.10x = 936,780.87 × 287,330.79 - Step 4: Simplify right side
624,614.10x = 269,165,987,433.99 - Step 5: Solve for x
x = 269,165,987,433.99/624,614.10 - Step 6: Final answer
x = 430,931.65
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1.5x scale
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.