Finding the Fourth Proportional to 804.36, 1,110 and 472.80
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Solution
The fourth proportional to 804.36, 1,110 and 472.80 is: 652.45
Step by Step Solution
- Step 1: Write the proportion equation
804.36 : 1,110 = 472.80 : x - Step 2: Convert to fraction form
804.36/1,110 = 472.80/x - Step 3: Cross multiply
804.36x = 1,110 × 472.80 - Step 4: Simplify right side
804.36x = 524,808 - Step 5: Solve for x
x = 524,808/804.36 - Step 6: Final answer
x = 652.45
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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.