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Finding the Fourth Proportional to 440.06, 606.54 and 434.38

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Solution

The fourth proportional to 440.06, 606.54 and 434.38 is: 598.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.06 : 606.54 = 434.38 : x
  2. Step 2: Convert to fraction form
    440.06/606.54 = 434.38/x
  3. Step 3: Cross multiply
    440.06x = 606.54 × 434.38
  4. Step 4: Simplify right side
    440.06x = 263,468.85
  5. Step 5: Solve for x
    x = 263,468.85/440.06
  6. Step 6: Final answer
    x = 598.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.