Finding the Fourth Proportional to 670,629.80, 1,005,944.70 and 513,165.80
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Solution
The fourth proportional to 670,629.80, 1,005,944.70 and 513,165.80 is: 769,748.70
Step by Step Solution
- Step 1: Write the proportion equation
670,629.80 : 1,005,944.70 = 513,165.80 : x - Step 2: Convert to fraction form
670,629.80/1,005,944.70 = 513,165.80/x - Step 3: Cross multiply
670,629.80x = 1,005,944.70 × 513,165.80 - Step 4: Simplify right side
670,629.80x = 516,216,416,731.26 - Step 5: Solve for x
x = 516,216,416,731.26/670,629.80 - Step 6: Final answer
x = 769,748.70
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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.