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Finding the Fourth Proportional to 673.32, 1,014.81 and 635.65

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Solution

The fourth proportional to 673.32, 1,014.81 and 635.65 is: 958.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.32 : 1,014.81 = 635.65 : x
  2. Step 2: Convert to fraction form
    673.32/1,014.81 = 635.65/x
  3. Step 3: Cross multiply
    673.32x = 1,014.81 × 635.65
  4. Step 4: Simplify right side
    673.32x = 645,062.63
  5. Step 5: Solve for x
    x = 645,062.63/673.32
  6. Step 6: Final answer
    x = 958.03

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.