Finding the Fourth Proportional to 840.99, 1,261.14 and 495.02
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Solution
The fourth proportional to 840.99, 1,261.14 and 495.02 is: 742.32
Step by Step Solution
- Step 1: Write the proportion equation
840.99 : 1,261.14 = 495.02 : x - Step 2: Convert to fraction form
840.99/1,261.14 = 495.02/x - Step 3: Cross multiply
840.99x = 1,261.14 × 495.02 - Step 4: Simplify right side
840.99x = 624,283.22 - Step 5: Solve for x
x = 624,283.22/840.99 - Step 6: Final answer
x = 742.32
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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.