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Finding the Fourth Proportional to 960.04, 1,325.06 and 627.85

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Solution

The fourth proportional to 960.04, 1,325.06 and 627.85 is: 866.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    960.04 : 1,325.06 = 627.85 : x
  2. Step 2: Convert to fraction form
    960.04/1,325.06 = 627.85/x
  3. Step 3: Cross multiply
    960.04x = 1,325.06 × 627.85
  4. Step 4: Simplify right side
    960.04x = 831,938.92
  5. Step 5: Solve for x
    x = 831,938.92/960.04
  6. Step 6: Final answer
    x = 866.57

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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.