Finding the Fourth Proportional to 418,974.24, 628,559.76 and 138,491.48
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Solution
The fourth proportional to 418,974.24, 628,559.76 and 138,491.48 is: 207,769.75
Step by Step Solution
- Step 1: Write the proportion equation
418,974.24 : 628,559.76 = 138,491.48 : x - Step 2: Convert to fraction form
418,974.24/628,559.76 = 138,491.48/x - Step 3: Cross multiply
418,974.24x = 628,559.76 × 138,491.48 - Step 4: Simplify right side
418,974.24x = 87,050,171,430.84 - Step 5: Solve for x
x = 87,050,171,430.84/418,974.24 - Step 6: Final answer
x = 207,769.75
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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.