Finding the Fourth Proportional to 988,260.60, 1,482,455.70 and 278,311.80
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Solution
The fourth proportional to 988,260.60, 1,482,455.70 and 278,311.80 is: 417,485.95
Step by Step Solution
- Step 1: Write the proportion equation
988,260.60 : 1,482,455.70 = 278,311.80 : x - Step 2: Convert to fraction form
988,260.60/1,482,455.70 = 278,311.80/x - Step 3: Cross multiply
988,260.60x = 1,482,455.70 × 278,311.80 - Step 4: Simplify right side
988,260.60x = 412,584,914,287.26 - Step 5: Solve for x
x = 412,584,914,287.26/988,260.60 - Step 6: Final answer
x = 417,485.95
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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.