Finding the Fourth Proportional to 714, 985.08 and 403.44
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Solution
The fourth proportional to 714, 985.08 and 403.44 is: 556.61
Step by Step Solution
- Step 1: Write the proportion equation
714 : 985.08 = 403.44 : x - Step 2: Convert to fraction form
714/985.08 = 403.44/x - Step 3: Cross multiply
714x = 985.08 × 403.44 - Step 4: Simplify right side
714x = 397,420.68 - Step 5: Solve for x
x = 397,420.68/714 - Step 6: Final answer
x = 556.61
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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.