Finding the Fourth Proportional to 411,901.07, 568,129.95 and 378,018.97
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Solution
The fourth proportional to 411,901.07, 568,129.95 and 378,018.97 is: 521,396.80
Step by Step Solution
- Step 1: Write the proportion equation
411,901.07 : 568,129.95 = 378,018.97 : x - Step 2: Convert to fraction form
411,901.07/568,129.95 = 378,018.97/x - Step 3: Cross multiply
411,901.07x = 568,129.95 × 378,018.97 - Step 4: Simplify right side
411,901.07x = 214,763,897,104.83 - Step 5: Solve for x
x = 214,763,897,104.83/411,901.07 - Step 6: Final answer
x = 521,396.80
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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.