Finding the Fourth Proportional to 873.74, 1,206 and 558.98
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Solution
The fourth proportional to 873.74, 1,206 and 558.98 is: 771.55
Step by Step Solution
- Step 1: Write the proportion equation
873.74 : 1,206 = 558.98 : x - Step 2: Convert to fraction form
873.74/1,206 = 558.98/x - Step 3: Cross multiply
873.74x = 1,206 × 558.98 - Step 4: Simplify right side
873.74x = 674,129.88 - Step 5: Solve for x
x = 674,129.88/873.74 - Step 6: Final answer
x = 771.55
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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.