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Finding the Fourth Proportional to 599.10, 898.65 and 519.90

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Solution

The fourth proportional to 599.10, 898.65 and 519.90 is: 779.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    599.10 : 898.65 = 519.90 : x
  2. Step 2: Convert to fraction form
    599.10/898.65 = 519.90/x
  3. Step 3: Cross multiply
    599.10x = 898.65 × 519.90
  4. Step 4: Simplify right side
    599.10x = 467,208.14
  5. Step 5: Solve for x
    x = 467,208.14/599.10
  6. Step 6: Final answer
    x = 779.85

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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.