Finding the Fourth Proportional to 798,711.81, 1,197,292.50 and 318,800.58
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Solution
The fourth proportional to 798,711.81, 1,197,292.50 and 318,800.58 is: 477,891.45
Step by Step Solution
- Step 1: Write the proportion equation
798,711.81 : 1,197,292.50 = 318,800.58 : x - Step 2: Convert to fraction form
798,711.81/1,197,292.50 = 318,800.58/x - Step 3: Cross multiply
798,711.81x = 1,197,292.50 × 318,800.58 - Step 4: Simplify right side
798,711.81x = 381,697,543,429.65 - Step 5: Solve for x
x = 381,697,543,429.65/798,711.81 - Step 6: Final answer
x = 477,891.45
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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.