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Finding the Fourth Proportional to 650.72, 970.06 and 640.73

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Solution

The fourth proportional to 650.72, 970.06 and 640.73 is: 955.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.72 : 970.06 = 640.73 : x
  2. Step 2: Convert to fraction form
    650.72/970.06 = 640.73/x
  3. Step 3: Cross multiply
    650.72x = 970.06 × 640.73
  4. Step 4: Simplify right side
    650.72x = 621,547.37
  5. Step 5: Solve for x
    x = 621,547.37/650.72
  6. Step 6: Final answer
    x = 955.17

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