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Finding the Fourth Proportional to 453.13, 628.52 and 436.74

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Solution

The fourth proportional to 453.13, 628.52 and 436.74 is: 605.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.13 : 628.52 = 436.74 : x
  2. Step 2: Convert to fraction form
    453.13/628.52 = 436.74/x
  3. Step 3: Cross multiply
    453.13x = 628.52 × 436.74
  4. Step 4: Simplify right side
    453.13x = 274,499.82
  5. Step 5: Solve for x
    x = 274,499.82/453.13
  6. Step 6: Final answer
    x = 605.79

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.