Finding the Fourth Proportional to 687,168.66, 1,030,850.19 and 266,487.06
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Solution
The fourth proportional to 687,168.66, 1,030,850.19 and 266,487.06 is: 399,768.28
Step by Step Solution
- Step 1: Write the proportion equation
687,168.66 : 1,030,850.19 = 266,487.06 : x - Step 2: Convert to fraction form
687,168.66/1,030,850.19 = 266,487.06/x - Step 3: Cross multiply
687,168.66x = 1,030,850.19 × 266,487.06 - Step 4: Simplify right side
687,168.66x = 274,708,236,433.54 - Step 5: Solve for x
x = 274,708,236,433.54/687,168.66 - Step 6: Final answer
x = 399,768.28
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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.