Finding the Fourth Proportional to 527,028.49, 727,299.56 and 285,311.06
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Solution
The fourth proportional to 527,028.49, 727,299.56 and 285,311.06 is: 393,729.39
Step by Step Solution
- Step 1: Write the proportion equation
527,028.49 : 727,299.56 = 285,311.06 : x - Step 2: Convert to fraction form
527,028.49/727,299.56 = 285,311.06/x - Step 3: Cross multiply
527,028.49x = 727,299.56 × 285,311.06 - Step 4: Simplify right side
527,028.49x = 207,506,608,401.13 - Step 5: Solve for x
x = 207,506,608,401.13/527,028.49 - Step 6: Final answer
x = 393,729.39
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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.