Finding the Fourth Proportional to 530,186.44, 731,635.36 and 288,469.95
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Solution
The fourth proportional to 530,186.44, 731,635.36 and 288,469.95 is: 398,076.60
Step by Step Solution
- Step 1: Write the proportion equation
530,186.44 : 731,635.36 = 288,469.95 : x - Step 2: Convert to fraction form
530,186.44/731,635.36 = 288,469.95/x - Step 3: Cross multiply
530,186.44x = 731,635.36 × 288,469.95 - Step 4: Simplify right side
530,186.44x = 211,054,815,717.43 - Step 5: Solve for x
x = 211,054,815,717.43/530,186.44 - Step 6: Final answer
x = 398,076.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.