Finding the Fourth Proportional to 439,163.19, 605,710.75 and 378,013.41
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Solution
The fourth proportional to 439,163.19, 605,710.75 and 378,013.41 is: 521,370.62
Step by Step Solution
- Step 1: Write the proportion equation
439,163.19 : 605,710.75 = 378,013.41 : x - Step 2: Convert to fraction form
439,163.19/605,710.75 = 378,013.41/x - Step 3: Cross multiply
439,163.19x = 605,710.75 × 378,013.41 - Step 4: Simplify right side
439,163.19x = 228,966,786,081.16 - Step 5: Solve for x
x = 228,966,786,081.16/439,163.19 - Step 6: Final answer
x = 521,370.62
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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.