Finding the Fourth Proportional to 720,707.10, 994,544.67 and 394,014.06
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Solution
The fourth proportional to 720,707.10, 994,544.67 and 394,014.06 is: 543,722.38
Step by Step Solution
- Step 1: Write the proportion equation
720,707.10 : 994,544.67 = 394,014.06 : x - Step 2: Convert to fraction form
720,707.10/994,544.67 = 394,014.06/x - Step 3: Cross multiply
720,707.10x = 994,544.67 × 394,014.06 - Step 4: Simplify right side
720,707.10x = 391,864,583,278.06 - Step 5: Solve for x
x = 391,864,583,278.06/720,707.10 - Step 6: Final answer
x = 543,722.38
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1.5x scale
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.