Finding the Fourth Proportional to 753,721.60, 1,130,236.80 and 332,780.80
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Solution
The fourth proportional to 753,721.60, 1,130,236.80 and 332,780.80 is: 499,018.61
Step by Step Solution
- Step 1: Write the proportion equation
753,721.60 : 1,130,236.80 = 332,780.80 : x - Step 2: Convert to fraction form
753,721.60/1,130,236.80 = 332,780.80/x - Step 3: Cross multiply
753,721.60x = 1,130,236.80 × 332,780.80 - Step 4: Simplify right side
753,721.60x = 376,121,106,493.44 - Step 5: Solve for x
x = 376,121,106,493.44/753,721.60 - Step 6: Final answer
x = 499,018.61
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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.