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Finding the Fourth Proportional to 599.89, 900.45 and 576.54

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Solution

The fourth proportional to 599.89, 900.45 and 576.54 is: 865.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    599.89 : 900.45 = 576.54 : x
  2. Step 2: Convert to fraction form
    599.89/900.45 = 576.54/x
  3. Step 3: Cross multiply
    599.89x = 900.45 × 576.54
  4. Step 4: Simplify right side
    599.89x = 519,142.56
  5. Step 5: Solve for x
    x = 519,142.56/599.89
  6. Step 6: Final answer
    x = 865.40

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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.