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Finding the Fourth Proportional to 453.06, 620.54 and 426.47

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Solution

The fourth proportional to 453.06, 620.54 and 426.47 is: 584.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.06 : 620.54 = 426.47 : x
  2. Step 2: Convert to fraction form
    453.06/620.54 = 426.47/x
  3. Step 3: Cross multiply
    453.06x = 620.54 × 426.47
  4. Step 4: Simplify right side
    453.06x = 264,639.12
  5. Step 5: Solve for x
    x = 264,639.12/453.06
  6. Step 6: Final answer
    x = 584.11

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.