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Finding the Fourth Proportional to 647.06, 968.52 and 625.64

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Solution

The fourth proportional to 647.06, 968.52 and 625.64 is: 936.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    647.06 : 968.52 = 625.64 : x
  2. Step 2: Convert to fraction form
    647.06/968.52 = 625.64/x
  3. Step 3: Cross multiply
    647.06x = 968.52 × 625.64
  4. Step 4: Simplify right side
    647.06x = 605,944.85
  5. Step 5: Solve for x
    x = 605,944.85/647.06
  6. Step 6: Final answer
    x = 936.46

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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.