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Finding the Fourth Proportional to 441.94, 659.40 and 400.90

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Solution

The fourth proportional to 441.94, 659.40 and 400.90 is: 598.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.94 : 659.40 = 400.90 : x
  2. Step 2: Convert to fraction form
    441.94/659.40 = 400.90/x
  3. Step 3: Cross multiply
    441.94x = 659.40 × 400.90
  4. Step 4: Simplify right side
    441.94x = 264,353.46
  5. Step 5: Solve for x
    x = 264,353.46/441.94
  6. Step 6: Final answer
    x = 598.17

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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.