Finding the Fourth Proportional to 917.33, 1,376.19 and 484.38
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Solution
The fourth proportional to 917.33, 1,376.19 and 484.38 is: 726.68
Step by Step Solution
- Step 1: Write the proportion equation
917.33 : 1,376.19 = 484.38 : x - Step 2: Convert to fraction form
917.33/1,376.19 = 484.38/x - Step 3: Cross multiply
917.33x = 1,376.19 × 484.38 - Step 4: Simplify right side
917.33x = 666,598.91 - Step 5: Solve for x
x = 666,598.91/917.33 - Step 6: Final answer
x = 726.68
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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.