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Finding the Fourth Proportional to 441.06, 657 and 426.08

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Solution

The fourth proportional to 441.06, 657 and 426.08 is: 634.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.06 : 657 = 426.08 : x
  2. Step 2: Convert to fraction form
    441.06/657 = 426.08/x
  3. Step 3: Cross multiply
    441.06x = 657 × 426.08
  4. Step 4: Simplify right side
    441.06x = 279,931.28
  5. Step 5: Solve for x
    x = 279,931.28/441.06
  6. Step 6: Final answer
    x = 634.68

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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.