Finding the Fourth Proportional to 439,958.79, 607,143.11 and 238,754.79
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Solution
The fourth proportional to 439,958.79, 607,143.11 and 238,754.79 is: 329,481.60
Step by Step Solution
- Step 1: Write the proportion equation
439,958.79 : 607,143.11 = 238,754.79 : x - Step 2: Convert to fraction form
439,958.79/607,143.11 = 238,754.79/x - Step 3: Cross multiply
439,958.79x = 607,143.11 × 238,754.79 - Step 4: Simplify right side
439,958.79x = 144,958,324,534.22 - Step 5: Solve for x
x = 144,958,324,534.22/439,958.79 - Step 6: Final answer
x = 329,481.60
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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.