Finding the Fourth Proportional to 418,990.24, 628,583.84 and 138,507.52
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Solution
The fourth proportional to 418,990.24, 628,583.84 and 138,507.52 is: 207,793.83
Step by Step Solution
- Step 1: Write the proportion equation
418,990.24 : 628,583.84 = 138,507.52 : x - Step 2: Convert to fraction form
418,990.24/628,583.84 = 138,507.52/x - Step 3: Cross multiply
418,990.24x = 628,583.84 × 138,507.52 - Step 4: Simplify right side
418,990.24x = 87,063,588,790.48 - Step 5: Solve for x
x = 87,063,588,790.48/418,990.24 - Step 6: Final answer
x = 207,793.83
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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.