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Finding the Fourth Proportional to 647.92, 968.09 and 625.24

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Solution

The fourth proportional to 647.92, 968.09 and 625.24 is: 934.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    647.92 : 968.09 = 625.24 : x
  2. Step 2: Convert to fraction form
    647.92/968.09 = 625.24/x
  3. Step 3: Cross multiply
    647.92x = 968.09 × 625.24
  4. Step 4: Simplify right side
    647.92x = 605,288.59
  5. Step 5: Solve for x
    x = 605,288.59/647.92
  6. Step 6: Final answer
    x = 934.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.