Finding the Fourth Proportional to 767.22, 1,056.36 and 654.99
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Solution
The fourth proportional to 767.22, 1,056.36 and 654.99 is: 901.83
Step by Step Solution
- Step 1: Write the proportion equation
767.22 : 1,056.36 = 654.99 : x - Step 2: Convert to fraction form
767.22/1,056.36 = 654.99/x - Step 3: Cross multiply
767.22x = 1,056.36 × 654.99 - Step 4: Simplify right side
767.22x = 691,905.24 - Step 5: Solve for x
x = 691,905.24/767.22 - Step 6: Final answer
x = 901.83
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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.