Finding the Fourth Proportional to 918.24, 1,266.87 and 622.99
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Solution
The fourth proportional to 918.24, 1,266.87 and 622.99 is: 859.52
Step by Step Solution
- Step 1: Write the proportion equation
918.24 : 1,266.87 = 622.99 : x - Step 2: Convert to fraction form
918.24/1,266.87 = 622.99/x - Step 3: Cross multiply
918.24x = 1,266.87 × 622.99 - Step 4: Simplify right side
918.24x = 789,246.00 - Step 5: Solve for x
x = 789,246.00/918.24 - Step 6: Final answer
x = 859.52
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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.