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Finding the Fourth Proportional to 958.75, 1,323.08 and 627.73

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Solution

The fourth proportional to 958.75, 1,323.08 and 627.73 is: 866.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    958.75 : 1,323.08 = 627.73 : x
  2. Step 2: Convert to fraction form
    958.75/1,323.08 = 627.73/x
  3. Step 3: Cross multiply
    958.75x = 1,323.08 × 627.73
  4. Step 4: Simplify right side
    958.75x = 830,537.01
  5. Step 5: Solve for x
    x = 830,537.01/958.75
  6. Step 6: Final answer
    x = 866.27

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Double scale
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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.