Finding the Fourth Proportional to 842.94, 1,163.19 and 469.92
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Solution
The fourth proportional to 842.94, 1,163.19 and 469.92 is: 648.45
Step by Step Solution
- Step 1: Write the proportion equation
842.94 : 1,163.19 = 469.92 : x - Step 2: Convert to fraction form
842.94/1,163.19 = 469.92/x - Step 3: Cross multiply
842.94x = 1,163.19 × 469.92 - Step 4: Simplify right side
842.94x = 546,606.24 - Step 5: Solve for x
x = 546,606.24/842.94 - Step 6: Final answer
x = 648.45
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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.