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Finding the Fourth Proportional to 575.98, 862.11 and 453.87

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Solution

The fourth proportional to 575.98, 862.11 and 453.87 is: 679.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.98 : 862.11 = 453.87 : x
  2. Step 2: Convert to fraction form
    575.98/862.11 = 453.87/x
  3. Step 3: Cross multiply
    575.98x = 862.11 × 453.87
  4. Step 4: Simplify right side
    575.98x = 391,285.87
  5. Step 5: Solve for x
    x = 391,285.87/575.98
  6. Step 6: Final answer
    x = 679.34

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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.