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Finding the Fourth Proportional to 633.56, 874.40 and 467.51

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Solution

The fourth proportional to 633.56, 874.40 and 467.51 is: 645.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.56 : 874.40 = 467.51 : x
  2. Step 2: Convert to fraction form
    633.56/874.40 = 467.51/x
  3. Step 3: Cross multiply
    633.56x = 874.40 × 467.51
  4. Step 4: Simplify right side
    633.56x = 408,784.03
  5. Step 5: Solve for x
    x = 408,784.03/633.56
  6. Step 6: Final answer
    x = 645.22

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1.5x scale

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.