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Finding the Fourth Proportional to 618.70, 926.22 and 444.46

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Solution

The fourth proportional to 618.70, 926.22 and 444.46 is: 665.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.70 : 926.22 = 444.46 : x
  2. Step 2: Convert to fraction form
    618.70/926.22 = 444.46/x
  3. Step 3: Cross multiply
    618.70x = 926.22 × 444.46
  4. Step 4: Simplify right side
    618.70x = 411,667.74
  5. Step 5: Solve for x
    x = 411,667.74/618.70
  6. Step 6: Final answer
    x = 665.38

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1.5x scale

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.