Finding the Fourth Proportional to 726,321.70, 1,089,482.55 and 656,337.70
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Solution
The fourth proportional to 726,321.70, 1,089,482.55 and 656,337.70 is: 984,506.55
Step by Step Solution
- Step 1: Write the proportion equation
726,321.70 : 1,089,482.55 = 656,337.70 : x - Step 2: Convert to fraction form
726,321.70/1,089,482.55 = 656,337.70/x - Step 3: Cross multiply
726,321.70x = 1,089,482.55 × 656,337.70 - Step 4: Simplify right side
726,321.70x = 715,068,471,057.14 - Step 5: Solve for x
x = 715,068,471,057.14/726,321.70 - Step 6: Final answer
x = 984,506.55
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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.