Finding the Fourth Proportional to 1,238.41, 1,857.60 and 508
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Solution
The fourth proportional to 1,238.41, 1,857.60 and 508 is: 761.99
Step by Step Solution
- Step 1: Write the proportion equation
1,238.41 : 1,857.60 = 508 : x - Step 2: Convert to fraction form
1,238.41/1,857.60 = 508/x - Step 3: Cross multiply
1,238.41x = 1,857.60 × 508 - Step 4: Simplify right side
1,238.41x = 943,660.80 - Step 5: Solve for x
x = 943,660.80/1,238.41 - Step 6: Final answer
x = 761.99
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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.