Finding the Fourth Proportional to 418,989.14, 628,489.56 and 119,469.74
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Solution
The fourth proportional to 418,989.14, 628,489.56 and 119,469.74 is: 179,206.28
Step by Step Solution
- Step 1: Write the proportion equation
418,989.14 : 628,489.56 = 119,469.74 : x - Step 2: Convert to fraction form
418,989.14/628,489.56 = 119,469.74/x - Step 3: Cross multiply
418,989.14x = 628,489.56 × 119,469.74 - Step 4: Simplify right side
418,989.14x = 75,085,484,325.91 - Step 5: Solve for x
x = 75,085,484,325.91/418,989.14 - Step 6: Final answer
x = 179,206.28
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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.