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Finding the Fourth Proportional to 607.71, 912.11 and 453.27

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Solution

The fourth proportional to 607.71, 912.11 and 453.27 is: 680.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.71 : 912.11 = 453.27 : x
  2. Step 2: Convert to fraction form
    607.71/912.11 = 453.27/x
  3. Step 3: Cross multiply
    607.71x = 912.11 × 453.27
  4. Step 4: Simplify right side
    607.71x = 413,429.83
  5. Step 5: Solve for x
    x = 413,429.83/607.71
  6. Step 6: Final answer
    x = 680.31

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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.