Finding the Fourth Proportional to 968.36, 1,451.12 and 480.74
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Solution
The fourth proportional to 968.36, 1,451.12 and 480.74 is: 720.40
Step by Step Solution
- Step 1: Write the proportion equation
968.36 : 1,451.12 = 480.74 : x - Step 2: Convert to fraction form
968.36/1,451.12 = 480.74/x - Step 3: Cross multiply
968.36x = 1,451.12 × 480.74 - Step 4: Simplify right side
968.36x = 697,601.77 - Step 5: Solve for x
x = 697,601.77/968.36 - Step 6: Final answer
x = 720.40
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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.