Finding the Fourth Proportional to 391,488.70, 587,277.41 and 351,260.53
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Solution
The fourth proportional to 391,488.70, 587,277.41 and 351,260.53 is: 526,930.60
Step by Step Solution
- Step 1: Write the proportion equation
391,488.70 : 587,277.41 = 351,260.53 : x - Step 2: Convert to fraction form
391,488.70/587,277.41 = 351,260.53/x - Step 3: Cross multiply
391,488.70x = 587,277.41 × 351,260.53 - Step 4: Simplify right side
391,488.70x = 206,287,374,293.63 - Step 5: Solve for x
x = 206,287,374,293.63/391,488.70 - Step 6: Final answer
x = 526,930.60
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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.