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Finding the Fourth Proportional to 453.83, 622.86 and 412.31

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Solution

The fourth proportional to 453.83, 622.86 and 412.31 is: 565.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.83 : 622.86 = 412.31 : x
  2. Step 2: Convert to fraction form
    453.83/622.86 = 412.31/x
  3. Step 3: Cross multiply
    453.83x = 622.86 × 412.31
  4. Step 4: Simplify right side
    453.83x = 256,808.29
  5. Step 5: Solve for x
    x = 256,808.29/453.83
  6. Step 6: Final answer
    x = 565.88

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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.