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Finding the Fourth Proportional to 453.65, 626.11 and 425.86

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Solution

The fourth proportional to 453.65, 626.11 and 425.86 is: 587.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.65 : 626.11 = 425.86 : x
  2. Step 2: Convert to fraction form
    453.65/626.11 = 425.86/x
  3. Step 3: Cross multiply
    453.65x = 626.11 × 425.86
  4. Step 4: Simplify right side
    453.65x = 266,635.20
  5. Step 5: Solve for x
    x = 266,635.20/453.65
  6. Step 6: Final answer
    x = 587.76

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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.