Finding the Fourth Proportional to 874.73, 1,207.14 and 542.99
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Solution
The fourth proportional to 874.73, 1,207.14 and 542.99 is: 749.33
Step by Step Solution
- Step 1: Write the proportion equation
874.73 : 1,207.14 = 542.99 : x - Step 2: Convert to fraction form
874.73/1,207.14 = 542.99/x - Step 3: Cross multiply
874.73x = 1,207.14 × 542.99 - Step 4: Simplify right side
874.73x = 655,464.95 - Step 5: Solve for x
x = 655,464.95/874.73 - Step 6: Final answer
x = 749.33
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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.